chore(main): release 0.3.0

Release-as: v0.3.0

.envrc

@@ -1,3 +1 @@
 use flake
-
-export PATH="$PATH:./vendor/bin"

.github/workflows/odin.yml

@@ -0,0 +1,32 @@
+name: Odin
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libsodium-dev sqlite3 libsqlite3-dev libsodium-dev
+
+      - name: Install Odin
+        run: |
+          git clone https://github.com/odin-lang/Odin.git /opt/odin
+          cd /opt/odin
+          ./build_odin.sh release
+          echo "/opt/odin" >> "$GITHUB_PATH"
+
+      - name: Build
+        run: |
+          odin build . -o:speed -out:envr
+
+      - name: Test
+        run: odin test .

.github/workflows/release-please.yml

@@ -0,0 +1,28 @@
+on:
+  push:
+    branches:
+      - main
+      - dev
+      - odin
+
+permissions:
+  contents: write
+  issues: write
+  pull-requests: write
+
+name: release-please
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: googleapis/release-please-action@v5
+        with:
+          # this assumes that you have created a personal access token
+          # (PAT) and configured it as a GitHub action secret named
+          # `MY_RELEASE_PLEASE_TOKEN` (this secret name is not important).
+          token: ${{ secrets.MY_RELEASE_PLEASE_TOKEN }}
+          # this is a built-in strategy in release-please, see "Action Inputs"
+          # for more options
+          release-type: simple
+          target-branch: ${{ github.ref_name }}

.gitignore

@@ -1,3 +1,14 @@
+# dev env
 .direnv
-node_modules
-vendor
+
+list.json
+
+# docs
+man 
+
+# build artifacts
+builds
+envr
+envr-go
+result
+version.odin

.tokeignore

@@ -0,0 +1 @@
+**/*_test.{odin,go}

CHANGELOG.md

@@ -0,0 +1,69 @@
+# Changelog
+
+## [0.3.0](https://github.com/sbrow/envr/compare/v0.2.1...v0.3.0) (2026-06-16)
+
+
+### ⚠ BREAKING CHANGES
+
+* The encryption format of databases has changed. Age encryption is no longer supported, and no automatic migration path was implemented.
+
+### Features
+
+* All encryption/decryption now happens in-memory. ([fe2b256](https://github.com/sbrow/envr/commit/fe2b256bd61eaf551d53faf3893b473a64a94667))
+* Config can be loaded from any path with `--config-file (-c)` flag. ([4a26ee8](https://github.com/sbrow/envr/commit/4a26ee814591e6aab0eb99d2359d51b31011edfe))
+* Switched from age to libsodium. ([23b8c2d](https://github.com/sbrow/envr/commit/23b8c2dc671a23cf76cf6746b33806ded9381486))
+
+
+### Performance Improvements
+
+* Improved writer performance. ([365e914](https://github.com/sbrow/envr/commit/365e9149b1a738ac9119bb5f74dc7e047ecfed5b))
+
+## [0.2.1](https://github.com/sbrow/envr/compare/v0.2.0...v0.2.1) (2026-01-12)
+
+
+### Bug Fixes
+
+* Added `add` as an alias for backup. ([cf363ab](https://github.com/sbrow/envr/commit/cf363abc4d8cec208d23c6acedbb7e0dd6900332))
+
+## [0.2.0](https://github.com/sbrow/envr/compare/v0.1.1...v0.2.0) (2025-11-10)
+
+
+### ⚠ BREAKING CHANGES
+
+* Dir is now derived from Path rather than stored in the DB. Your DB will need to be updated.
+* **scan:** The config value `scan.Exclude` is now a list rather than a string.
+* **check:** Renamed the `check` command to `deps`.
+* The config value `scan.Include` is now a list rather than a string.
+
+### Features
+
+* Added new `check` command. ([cbd74f3](https://github.com/sbrow/envr/commit/cbd74f387e2e330b2557d07dd82ba05cc91300ac))
+* **config:** The default config now filters out more junk. ([15be62b](https://github.com/sbrow/envr/commit/15be62b5a2a5a735b90b074497d645c5a2cfced8))
+* **init:** Added a `--force` flag for overwriting an existing config. ([169653d](https://github.com/sbrow/envr/commit/169653d7566f63730fb9da80a18330a566223be9))
+* Multiple scan includes are now supported. ([4273fa5](https://github.com/sbrow/envr/commit/4273fa58956d8736271a0af66202dca481126fe4))
+* **scan:** Added support for multiple exports. ([f43705c](https://github.com/sbrow/envr/commit/f43705cd53c6d87aef1f69df4e474441f25c1dc7))
+* **sync:** envr can now detect if directories have moved. ([4db0a4d](https://github.com/sbrow/envr/commit/4db0a4d33d2b6a79d13b36a8e8631f895e8fef8d))
+* **sync:** Now checks files for mismatched hashes before replacing. ([8074f7a](https://github.com/sbrow/envr/commit/8074f7ae6dfa54e931a198257f3f8e6d0cfe353a))
+
+
+### Bug Fixes
+
+* **check:** `fd` now correctly gets marked as found. ([17ce49c](https://github.com/sbrow/envr/commit/17ce49cd2d33942282c6f54ce819ac25978f6b7c))
+
+
+### Code Refactoring
+
+* **check:** Renamed the `check` command to `deps`. ([c9c34ce](https://github.com/sbrow/envr/commit/c9c34ce771653da214635f1df1fef1f23265c552))
+* Dir is no longer stored in the database. ([0fef74a](https://github.com/sbrow/envr/commit/0fef74a9bba0fbf3c34b66c2095955e6eee7047b))
+
+## [0.1.1](https://github.com/sbrow/envr/compare/v0.1.0...v0.1.1) (2025-11-05)
+
+
+### Features
+
+* **sync:** Results are now displayed in a table. ([42796ec](https://github.com/sbrow/envr/commit/42796ec77b1817e1b9f09068d76a7b6e30da246b))
+
+
+### Bug Fixes
+
+* **sync:** Fixed an issue where deleted folders would be restored. ([9ab72a2](https://github.com/sbrow/envr/commit/9ab72a25faf1af0eedb2f4574166c6ee47450ebb))

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Spencer Reid Brower
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Makefile

@@ -0,0 +1,92 @@
+# Makefile for envr - Environment file manager
+# Builds release artifacts for GitHub releases
+
+APP_NAME := envr
+VERSION := $(shell grep 'version = ' flake.nix | head -1 | sed 's/.*version = "\(.*\)";/\1/')
+BUILD_DIR := builds
+
+# Binary names
+LINUX_AMD64_BIN := $(BUILD_DIR)/$(APP_NAME)-$(VERSION)-linux-amd64
+LINUX_ARM64_BIN := $(BUILD_DIR)/$(APP_NAME)-$(VERSION)-linux-arm64
+DARWIN_ARM64_BIN := $(BUILD_DIR)/$(APP_NAME)-$(VERSION)-darwin-arm64
+
+.PHONY: all clean cleanall build-linux build-darwin compress release help
+
+# Default target
+all: release clean
+
+# Create build directory
+$(BUILD_DIR):
+	@mkdir -p $(BUILD_DIR)
+
+# Build Linux AMD64
+$(LINUX_AMD64_BIN): $(BUILD_DIR)
+	@echo "Building for Linux AMD64..."
+	odin build . -target:linux_amd64 -o:speed -out:$(LINUX_AMD64_BIN)
+	@echo "Built $(LINUX_AMD64_BIN)"
+
+# Build Linux ARM64
+$(LINUX_ARM64_BIN): $(BUILD_DIR)
+	@echo "Building for Linux ARM64..."
+	odin build . -target:linux_arm64 -o:speed -out:$(LINUX_ARM64_BIN)
+	@echo "Built $(LINUX_ARM64_BIN)"
+
+# Build Darwin ARM64 (Mac)
+$(DARWIN_ARM64_BIN): $(BUILD_DIR)
+	@echo "Building for Darwin ARM64..."
+	odin build . -target:darwin_arm64 -o:speed -out:$(DARWIN_ARM64_BIN)
+	@echo "Built $(DARWIN_ARM64_BIN)"
+
+# Build all binaries
+build-linux: $(LINUX_AMD64_BIN) # $(LINUX_ARM64_BIN)
+build-darwin: $(DARWIN_ARM64_BIN)
+
+# Compress Linux artifacts with gzip
+$(BUILD_DIR)/$(APP_NAME)-$(VERSION)-linux-amd64.tar.gz: $(LINUX_AMD64_BIN)
+	@echo "Compressing Linux AMD64 artifact..."
+	cd $(BUILD_DIR) && tar -czf $(APP_NAME)-$(VERSION)-linux-amd64.tar.gz --transform 's|.*|$(APP_NAME)|' $(shell basename $(LINUX_AMD64_BIN))
+
+$(BUILD_DIR)/$(APP_NAME)-$(VERSION)-linux-arm64.tar.gz: $(LINUX_ARM64_BIN)
+	@echo "Compressing Linux ARM64 artifact..."
+	cd $(BUILD_DIR) && tar -czf $(APP_NAME)-$(VERSION)-linux-arm64.tar.gz --transform 's|.*|$(APP_NAME)|' $(shell basename $(LINUX_ARM64_BIN))
+
+# Compress Darwin artifacts with zip
+$(BUILD_DIR)/$(APP_NAME)-$(VERSION)-darwin-arm64.zip: $(DARWIN_ARM64_BIN)
+	@echo "Compressing Darwin ARM64 artifact..."
+	cd $(BUILD_DIR) && cp $(shell basename $(DARWIN_ARM64_BIN)) $(APP_NAME) && zip $(APP_NAME)-$(VERSION)-darwin-arm64.zip $(APP_NAME) && rm $(APP_NAME)
+
+# Compress all artifacts
+compress: $(BUILD_DIR)/$(APP_NAME)-$(VERSION)-linux-amd64.tar.gz \
+          # $(BUILD_DIR)/$(APP_NAME)-$(VERSION)-linux-arm64.tar.gz \
+          # $(BUILD_DIR)/$(APP_NAME)-$(VERSION)-darwin-arm64.zip
+
+# Build and compress all release artifacts
+# release: build-linux build-darwin compress
+release: build-linux compress
+	@echo "Release artifacts created:"
+	@ls -la $(BUILD_DIR)/*.tar.gz $(BUILD_DIR)/*.zip 2>/dev/null || echo "No compressed artifacts found"
+
+# Clean binary files only
+clean:
+	@echo "Cleaning binary files..."
+	@rm -f $(LINUX_AMD64_BIN) $(LINUX_ARM64_BIN) $(DARWIN_ARM64_BIN)
+
+# Clean everything in build directory
+cleanall:
+	@echo "Cleaning build directory..."
+	@rm -rf $(BUILD_DIR)
+
+# Show available targets
+help:
+	@echo "Available targets:"
+	@echo "  all         - Build all release artifacts (default)"
+	@echo "  release     - Build and compress all release artifacts"
+	@echo "  build-linux  - Build Linux binaries only"
+	@echo "  build-darwin - Build Darwin binaries only"
+	@echo "  compress    - Compress all built binaries"
+	@echo "  clean       - Remove binary files only"
+	@echo "  cleanall    - Remove entire build directory"
+	@echo "  help        - Show this help message"
+	@echo ""
+	@echo "Release artifacts will be created in $(BUILD_DIR)/"
+	@echo "Version: $(VERSION)"

README.md

@@ -1,4 +1,135 @@
-## TODOS
+# envr - Backup your env files
 
-- [ ] `envr sync` - Restore missing .env files, and update backed up ones.
-- [ ] `envr scan` - Search for missing / moved .env files.
+Have you ever wanted to back up all your .env files in case your hard drive gets
+nuked? `envr` makes it easier.
+
+`envr` is a binary application that tracks your `.env` files
+in an encyrpted sqlite database. Changes can be effortlessly synced with
+`envr sync`, and restored with `envr restore`.
+
+`envr` puts all your .env files in one safe place, so you can back them up with
+the tool [of your choosing](#backup-options).
+
+## Features
+
+- 🔐 **Encrypted Storage**: All `.env` files are encrypted using your ssh key and
+[libsodium](https://github.com/jedisct1/libsodium) encryption.
+- 🔄 **Automatic Sync**: Update the database with one command, which can easily
+be run on a cron.
+- 🔍 **Smart Scanning**: Automatically discover and import `.env` files in your
+home directory.
+- ✨ **Interactive CLI**: User-friendly prompts for file selection and management.
+- 🗂️ **Rename Detection**: Automatically finds and updates renamed/moved
+repositories.
+
+## TODOS
+- [x] Rename Detection: automatically update moved files.
+- [ ] Allow use of keys from `ssh-agent`
+- [x] Allow configuration of ssh key.
+- [x] Allow multiple ssh keys.
+
+## Prerequisites
+
+- An SSH key pair (for encryption/decryption)
+- The following binaries:
+   - [fd](https://github.com/sharkdp/fd)
+   - [git](https://git-scm.com)
+
+## Installation
+
+### With Odin
+
+If you already have `odin` installed:
+
+```bash
+# You'll need libsodium and sqlite
+odin build -o:speed
+envr init
+```
+
+### With Nix
+
+If you are a [nix](https://nixos.org/) user
+
+#### Try it out
+
+```bash
+nix run github.com:sbrow/envr --
+```
+
+#### Install it
+
+```nix
+# /etc/nixos/configuration.nix
+{ config, envr, system, ... }: {
+  environment.systemPackages = [
+    envr.packages.${system}.default
+  ];
+}
+```
+
+## Quick Start
+
+Check out the [man page](./docs/cli/envr.md) for the quick setup guide.
+
+## Disclaimers
+
+> [!CAUTION]
+> Do not lose your SSH key pair! Your backup will be **lost forever**.
+
+## Commands
+
+See [the docs](./docs/cli) for the current list of available commands.
+
+## Configuration
+
+The configuration file is created during initialization:
+
+```jsonc
+# Example ~/.envr/config.json
+{
+  "keys": [
+    {
+      "private": "/home/ubuntu/.ssh/id_ed25519",
+      "public": "/home/ubuntu/.ssh/id_ed25519.pub"
+    }
+  ],
+  "scan": {
+    "matcher": "\\.env",
+    "exclude": "*.envrc",
+    "include": "~"
+  }
+}
+```
+
+## Backup Options
+
+`envr` merely gathers your `.env` files in one local place. It is up to you to
+back up the database (found at `~/.envr/data.envr`) to a *secure* and *remote*
+location.
+
+### Git
+
+`envr` preserves inodes when updating the database, so you can safely hardlink
+`~/.envr/data.envr` into your [GNU Stow](https://www.gnu.org/software/stow/),
+[Home Manager](https://github.com/nix-community/home-manager), or
+[NixOS](https://nixos.wiki/wiki/flakes) repository.
+
+> [!CAUTION]
+> For **maximum security**, only save your `data.envr` file to a local
+(i.e. non-cloud) git server that **you personally control**.
+>
+> I take no responsibility if you push all your secrets to a public GitHub repo.
+
+### restic
+
+[restic](https://restic.readthedocs.io/en/latest/010_introduction.html).
+
+## License
+
+This project is licensed under the [MIT License](./LICENSE).
+
+## Support
+
+For issues, feature requests, or questions, please
+[open an issue](https://github.com/sbrow/envr/issues).

TABLE_IMPROVEMENT_PLAN.md

@@ -0,0 +1,268 @@
+# Table Rendering Memory Optimization Plan
+
+## Executive Summary
+
+This plan outlines improvements to eliminate excessive memory allocations and copies in the Odin table rendering system. The current implementation makes 10+ allocations per row, while the Zig equivalent makes zero allocations for rendering. This optimization will reduce memory usage, improve performance, and align with the project's efficiency goals.
+
+## Current State Analysis
+
+### Zig Version (Reference Implementation)
+- **Allocations**: 1 (data only)
+- **Data copies**: 0
+- **String allocation**: 0
+- **Column widths**: Stack array
+- **Output**: Direct to writer
+
+### Odin Version (Current Implementation)
+- **Allocations**: 10+ per row
+- **Data copies**: Multiple per row
+- **String allocation**: 2+ per row (concatenate + slice)
+- **Column widths**: Heap allocated
+- **Output**: Builder → stdout
+
+### Current Issues Identified
+
+1. **Table Infrastructure** (`table.odin`)
+   - Uses `strings.Builder` which allocates per-line memory
+   - Heap-allocated `[dynamic]int` for column widths
+   - Multiple `strings.concatenate()` calls creating new strings
+
+2. **Command Implementations**
+   - `cmd_list`: Creates intermediate `[]string` slices per row, allocates new strings via `strings.concatenate()`
+   - `cmd_sync`: Creates `SyncEntry` structs with cloned strings, allocates dynamic arrays
+   - `cmd_deps`: Allocates dynamic rows array unnecessarily
+
+3. **Memory Pattern**
+   - Each command allocates `[][]string` for table data
+   - Manual struct-to-row transformation creates copies
+   - Duplicate code across all table-using commands
+
+## Proposed Solutions
+
+### Phase 1: Core Table Infrastructure Overhaul
+
+#### 1.1 Direct Writer-Based Rendering
+**Current:**
+```odin
+b: strings.Builder
+strings.builder_init(&b)
+// ... build table in builder
+fmt.println(strings.to_string(b))
+```
+
+**Proposed:**
+```odin
+render_table :: proc(writer: io.Writer, headers: []string, rows: [][]string)
+```
+- Replace `strings.Builder` with `io.Writer` output
+- Eliminate intermediate string allocations
+- Write table components directly to output stream
+
+#### 1.2 Stack-Based Column Widths
+**Current:**
+```odin
+col_widths := make([dynamic]int, 0, len(headers))
+```
+
+**Proposed:**
+- Use fixed stack arrays for reasonable column counts
+- Implement small buffer optimization (SBO) for variable column counts
+- Only allocate for tables exceeding threshold (e.g., 16 columns)
+
+#### 1.3 Zero-Copy String Handling
+**Current:**
+```odin
+dir_str := strings.concatenate({row.Dir, "/"}, context.temp_allocator)
+```
+
+**Proposed:**
+- Replace `strings.concatenate()` with string slicing
+- Work directly with `EnvFile.Path` and `EnvFile.Dir` fields
+- Use `filepath.base()` and `filepath.dir()` without allocation where possible
+
+### Phase 2: Generic Table Interface
+
+#### 2.1 Field-Based Table Renderer
+```odin
+Table_Field :: struct {
+    name: string,
+    value: string,  // String view, no allocation
+    alignment: Alignment,
+}
+
+Table_Config :: struct {
+    writer: io.Writer,
+    fields: []Table_Field,
+    col_widths: []int,
+}
+
+render_row :: proc(cfg: Table_Config, row_data: any)
+```
+- Accept struct fields directly without intermediate arrays
+- Support field selection (show only specific fields)
+- Alignment options (left/center/right)
+
+#### 2.2 Field Extraction Procs
+- Generate field extraction helpers for each struct type
+- Avoid string allocation by returning string views
+- Cache computed values (like formatted status strings)
+
+#### 2.3 Streaming Table Processing
+- Process rows one at a time without collecting all rows
+- Reduce peak memory usage from O(N × strings) to O(table_structure)
+- Enable early termination if needed
+
+### Phase 3: Command-Specific Optimizations
+
+#### 3.1 Eliminate Intermediate Structs
+**Current (cmd_sync):**
+```odin
+for &file in files {
+    // ... processing
+    path_str, _ := strings.clone(file.Path)
+    status_str, _ := strings.clone(status)
+    append(&results, SyncEntry{Path = path_str, Status = status_str})
+}
+```
+
+**Proposed:**
+```odin
+for &file in files {
+    result, err_msg := db_sync(&db, &file)
+    // Direct rendering with zero-copy
+    render_sync_row(writer, file, result, err_msg)
+}
+```
+- `cmd_sync`: Work directly with `EnvFile` + `SyncFlagEnum`
+- `cmd_list`: Use `EnvFile` fields directly, no `ListEntry`
+- Generate table content on-the-fly
+
+#### 3.2 In-Place Status Computation
+```odin
+get_sync_status :: proc(result: SyncFlag, err_msg: string) -> string {
+    switch {
+    case .Error in result: return if len(err_msg) > 0 then err_msg else "error"
+    case .BackedUp in result: return "Backed Up"
+    case .Restored in result: return "Restored"
+    case .DirUpdated in result: return "Moved"
+    case: return "OK"
+    }
+}
+```
+- Compute status strings without allocation (use static lookup)
+- Cache formatted status values if needed
+- Reduce allocation count from N to 0 or 1
+
+#### 3.3 Batch Processing
+- Reduce allocation count by pooling small allocations
+- Use `context.temp_allocator` more effectively
+- Pre-allocate buffers for expected sizes
+
+### Phase 4: JSON Output Separation
+
+#### 4.1 Unified JSON Rendering
+```odin
+render_json_rows :: proc(writer: io.Writer, rows: any, field_names: []string)
+```
+- Create centralized JSON rendering helper
+- Work with same structs as table rendering
+- Use reflection or explicit field marshaling
+
+#### 4.2 Format-Agnostic Interface
+- Commands generate data → renderers handle format
+- Table renderer focuses only on ASCII/Unicode output
+- Keep terminal detection in command layer
+
+## Expected Improvements
+
+| Metric | Current | Target | Improvement |
+|--------|---------|--------|-------------|
+| **Allocations** | 10+ per row | 0-1 per table | 10x+ reduction |
+| **Memory copies** | 2-3 per row | 0 | 100% reduction |
+| **Peak memory** | O(N × strings) | O(table_structure) | Constant factor |
+| **Throughput** | Baseline | 2-3x faster | Performance boost |
+
+## Implementation Strategy
+
+### High-Priority Changes
+1. Replace `strings.Builder` with direct `io.Writer` output
+2. Convert column widths to stack-based allocation
+3. Eliminate intermediate struct allocations in commands
+
+### Medium-Priority Changes
+1. Create generic field-based table interface
+2. Implement streaming table processing
+3. Centralize JSON rendering logic
+
+### Low-Priority Changes
+1. Add alignment options beyond left-aligned
+2. Implement comprehensive field introspection
+3. Add advanced table formatting features
+
+## Tradeoff Questions
+
+Before implementation begins, we need to resolve these architectural questions:
+
+### 1. Generality vs. Performance
+**Question:** Should we create a fully generic table renderer (similar to Zig's `Table(T)`) or focus on optimizing the current 3 use cases first?
+
+**Options:**
+- **Generic approach**: Higher development cost, future-proof, may have some overhead
+- **Specific optimization**: Faster implementation, maximum performance for current use cases, less flexible
+
+**Recommendation:** Start with specific optimizations for current use cases, then generalize patterns that emerge.
+
+### 2. Alignment Support
+**Question:** Does the project need left/center/right alignment support, or is left-alignment sufficient?
+
+**Context:** Zig supports alignment options, but current Odin implementation only left-aligns. Most CLI tables work fine with left alignment.
+
+**Recommendation:** Start with left-alignment only, add alignment if specific use cases demand it.
+
+### 3. API Compatibility
+**Question:** Should we maintain the current `render_table()` API signature, or are breaking changes acceptable?
+
+**Current API:**
+```odin
+render_table :: proc(headers: []string, rows: [][]string)
+```
+
+**Options:**
+- **Maintain API**: Slower to implement, backward compatible, may need adapter layers
+- **Break API**: Faster implementation, cleaner code, requires updates to all callers
+
+**Recommendation:** Breaking changes are acceptable since this is an optimization-focused effort and callers are limited to 3 commands.
+
+### 4. Odin Capabilities
+**Question:** What runtime reflection or field introspection capabilities does Odin provide?
+
+**Context:** Zig uses `@typeInfo()` and comptime field iteration. We need to understand Odin's equivalent capabilities to design the optimal solution.
+
+**Recommendation:** Investigate Odin's runtime type information capabilities before finalizing the generic table interface design.
+
+### 5. Testing Strategy
+**Question:** Should we add comprehensive tests for new table rendering before optimizing commands, or optimize incrementally with tests added afterwards?
+
+**Options:**
+- **Test-first**: More robust, catches regressions early, slower initial development
+- **Optimize-first**: Faster development, may miss edge cases, requires retroactive testing
+
+**Recommendation:** Hybrid approach - add basic tests for core infrastructure, then optimize incrementally with additional tests for each command.
+
+## Next Steps
+
+1. **Research Phase**: Investigate Odin's type system and reflection capabilities
+2. **Prototype Phase**: Create minimal working prototype of zero-allocation table renderer
+3. **Refactor Phase**: Incrementally update commands to use new infrastructure
+4. **Test Phase**: Add comprehensive tests and verify memory improvements
+5. **Benchmark Phase**: Measure performance improvements and memory usage
+
+## Success Criteria
+
+- [ ] Zero allocations for table rendering (excluding initial data)
+- [ ] Zero string copies in the happy path
+- [ ] All 3 commands (`list`, `sync`, `deps`) use new infrastructure
+- [ ] Performance improvement of 2x or more
+- [ ] Memory usage reduction of 50% or more
+- [ ] No regression in table formatting quality
+- [ ] Backward compatibility with JSON output format

TEST_PLAN.md

@@ -0,0 +1,70 @@
+# Test Coverage Plan
+
+## Current State
+
+- 104 tests, all passing
+- Strong coverage: crypto, ssh, db CRUD + env_file + update_dir, config save/load + paths, scan, features, cant_scan, parse_args, `-c`/`--config-file` flag
+- Misleading test files: `cmd_check_test`, `cmd_list_test`, `cmd_nushell_completion_test` don't test their namesake procs
+- Biggest remaining gap: all `cmd_*` handlers untested
+
+## Command handler tests
+
+Stdout will be captured by redirecting `os.stdout` to a pipe.
+
+### `cmd_version` (cmd_version.odin)
+- Test default output (prints VERSION)
+
+### `cmd_list` (cmd_list.odin)
+- Test TTY path: fixture DB with rows, capture table output
+- Test non-TTY path: capture JSON output, unmarshal and verify keys/values
+- Test empty DB: verify clean output (empty table or `[]`)
+
+### `cmd_backup` (cmd_backup.odin)
+- Test successful backup: valid path, verify `db_insert` called
+- Test missing file: verify error message
+- Test duplicate backup: verify rejection or update behavior
+
+### `cmd_remove` (cmd_remove.odin)
+- Test successful removal: existing entry, verify `db_delete` called
+- Test removal of non-existent entry: verify error or no-op
+
+### `cmd_restore` (cmd_restore.odin)
+- Test successful restore: entry exists in DB, verify file written to correct path
+- Test restore of missing entry: verify error
+- Test directory creation: restore to path with missing parent dirs
+
+## Hard to test (interactive / external deps)
+
+### `cmd_deps` (cmd_deps.odin)
+- Needs `git` and/or `fd` in PATH
+- Test TTY and non-TTY paths
+- Skip if dependencies not available (with `#assert` like TODO 28 suggests)
+
+### `cmd_scan` (cmd_scan.odin)
+- Needs `fd` installed
+- Test with fixture git repo containing `.env` files
+- Test `find_unbacked` integration (already partially tested in `cmd_check_test.odin`)
+- Non-TTY JSON output path
+
+### `cmd_edit_config` (cmd_edit_config.odin)
+- Needs refactoring: extract `$EDITOR` parsing into testable helper (TODO 12)
+- Test multi-word editor values (`"code -w"`)
+- Test missing `$EDITOR`
+
+### `cmd_init` (cmd_init.odin)
+- Interactive prompt makes this hard
+- Needs refactoring: extract SSH key discovery and config generation into testable procs
+- Test `--force` flag behavior
+
+### `prompt.odin`
+- Needs refactoring to be testable
+- `render_options` could be tested if it accepted an `io.Writer`
+- `read_key` could be tested with a pipe/redirect instead of raw stdin
+- `multi_select` is end-to-end interactive, likely integration test only
+
+## Notes
+
+- DB integration tests should use in-memory SQLite (`:memory:`) where possible.
+- Temp dir fixtures should follow the pattern in `scan_test.odin`.
+- External dependency tests (`fd`, `git`) should use `#assert` to ensure the dependency is present rather than silently skipping (TODO 28).
+- Tests that manipulate the `HOME` env var must use a mutex to prevent races with parallel test execution.

TODOS.md

@@ -0,0 +1,83 @@
+# TODOs
+
+
+1. Consider giving db its own allocator
+
+2. **db.odin:324-327** — Map iteration (`remote_set`) is non-deterministic. Same file can produce different JSON on each backup, causing spurious DB diffs. Sort remotes before storing.
+
+3. **db.odin:135, 250** — String interpolation into SQL (`VACUUM INTO '%s'`, `ATTACH DATABASE '%s'`). Currently safe because input is controlled, but fragile.
+
+4. **features.odin:30-41** — `find_binary` uses `strings.join` instead of `filepath.join`, uses `os.stat` instead of checking executability, hardcodes `:` as PATH separator (wrong on Windows).
+
+5. **cmd_restore.odin:20-30 & cmd_remove.odin:19-29** — Identical path-resolution block copy-pasted. `is_abs` guard is redundant since `filepath.abs` is a no-op on absolute paths. Extract a helper.
+
+6. **cmd_restore.odin:44** — `os.mkdir_all` error silently discarded. Subsequent write failure will be confusing.
+
+8. **config.odin:178** — `search_paths` silently ignores `os.user_home_dir` error. If home is empty, `~` isn't expanded. Same class of bug as issue 3.
+
+10. **db.odin:115** — `json.unmarshal_string` error not checked. Malformed JSON silently produces empty/partial data.
+
+11. **db.odin:352-353** — `hex.encode` error ignored. `string(hex_bytes)` aliases the byte slice.
+
+12. **cmd_sync.odin:80, cmd_list.odin:33, cmd_deps.odin:9** — `make([]string, 2)` for table rows never freed. Leaks per row. Defer to memory pass.
+
+13. **cmd_list.odin** — Non-TTY branch builds `ListEntry` structs and marshals JSON separately. Now that `render_json_rows` (issue 1) accepts an `io.Writer` and uses `json.marshal`, unify both branches to use it. Note: will change JSON keys from `"directory"/"path"` to `"Directory"/"Path"`.
+
+14. Check for prealloc opportunities. i.e. `make([dynamic]string)` -> `make([dynamic]string, 5)`.
+
+15. Add a text filter to the multi_select.
+
+16. Create backup / fallback fd.
+
+17. Add tests for untested commands.
+
+18. 2 scan tests silently skip when fd isn't installed, tests pass without actually testing anything. These should use #assert to be sure that fd is in path.
+
+19. Try to do all encryption / decryption in memory - only read / write encrypted data to disk.
+
+20. add --format -f flag to commands that draw tables.
+
+21. Replace `testing.expect` calls with `testing.expect_value` calls where appropriate.
+
+22. Change struct field names from PascalCase to snake_case.
+
+23. procedures should be ordered by use, main at the top, then in the order they are called from main.
+
+## Double-check AI output
+
+- [ ] cli.odin
+- [ ] cli_test.odin
+- [x] cmd_backup.odin
+- [x] cmd_check.odin
+- [ ] cmd_check_test.odin
+- [x] cmd_deps.odin
+- [ ] cmd_edit_config.odin
+- [x] cmd_init.odin
+- [x] cmd_list.odin
+- [ ] cmd_list_test.odin
+- [x] cmd_nushell_completion.odin
+- [x] cmd_nushell_completion_test.odin
+- [x] cmd_remove.odin
+- [x] cmd_restore.odin
+- [x] cmd_scan.odin
+- [x] cmd_sync.odin
+- [x] cmd_version.odin
+- [ ] config.odin
+- [ ] config_test.odin
+- [ ] crypto.odin
+- [ ] crypto_test.odin
+- [ ] db.odin
+- [ ] db_integration_test.odin
+- [ ] db_test.odin
+- [x] features.odin
+- [x] features_test.odin
+- [x] main.odin
+- [x] prompt.odin
+- [ ] scan.odin
+- [ ] scan_test.odin
+- [ ] sodium.odin
+- [ ] sqlite/sqlite.odin
+- [ ] ssh.odin
+- [ ] ssh_test.odin
+- [ ] table.odin
+- [ ] table_test.odin

WINDOWS.md

@@ -0,0 +1,92 @@
+# Windows Compatibility Guide
+
+This document outlines Windows compatibility issues and solutions for the envr project.
+
+## Critical Issues
+
+### 1. Path Handling Bug (MUST FIX)
+
+**File:** `app/env_file.go:209`
+
+**Issue:** Uses `path.Join` instead of `filepath.Join`, which won't work correctly on Windows due to different path separators.
+
+**Current code:**
+```go
+f.Path = path.Join(newDir, path.Base(f.Path))
+```
+
+**Fixed code:**
+```go
+f.Path = filepath.Join(newDir, filepath.Base(f.Path))
+```
+
+## External Dependencies
+
+The application relies on external tools that need to be installed separately on Windows:
+
+### Required Tools
+
+1. **fd** - Fast file finder
+   - Install via: `winget install sharkdp.fd` or `choco install fd`
+   - Alternative: `scoop install fd`
+
+2. **git** - Version control system
+   - Install via: `winget install Git.Git` or download from git-scm.com
+   - Usually already available on most development machines
+
+## Minor Compatibility Notes
+
+### File Permissions
+- Unix file permissions (`0755`, `0644`) are used throughout the codebase
+- These are safely ignored on Windows - no changes needed
+
+### Editor Configuration
+**File:** `cmd/edit_config.go:20-24`
+
+**Issue:** Relies on `$EDITOR` environment variable which is less common on Windows.
+
+**Current behavior:** Fails if `$EDITOR` is not set
+
+**Recommended improvement:** Add fallback detection for Windows editors:
+```go
+editor := os.Getenv("EDITOR")
+if editor == "" {
+    if runtime.GOOS == "windows" {
+        editor = "notepad.exe"  // or "code.exe" for VS Code
+    } else {
+        fmt.Println("Error: $EDITOR environment variable is not set")
+        return
+    }
+}
+```
+
+## Installation Instructions for Windows
+
+1. Install required dependencies:
+   ```powershell
+   winget install sharkdp.fd
+   winget install Git.Git
+   ```
+
+2. Fix the path handling bug in `app/env_file.go:209`
+
+3. Build and run as normal:
+   ```powershell
+   go build
+   .\envr.exe init
+   ```
+
+## Testing on Windows
+
+After applying the critical path fix, the core functionality should work correctly on Windows. The application has been designed with cross-platform compatibility in mind, using:
+
+- `filepath` package for path operations (mostly)
+- `os.UserHomeDir()` for home directory detection
+- Standard Go file operations
+
+## Summary
+
+- **1 critical bug** must be fixed for Windows compatibility
+- **2 external tools** need to be installed
+- **1 minor enhancement** recommended for better Windows UX
+- Overall architecture is Windows-compatible

cli.odin

@@ -0,0 +1,272 @@
+package main
+
+import "core:bufio"
+import "core:fmt"
+import "core:io"
+import "core:os"
+import "core:strings"
+
+Command :: struct {
+	name:        string,
+	args:        [dynamic]string,
+	flags:       map[string]string,
+	bool_set:    map[string]bool,
+	config_path: string,
+	out_buf:     ^bufio.Writer,
+	out:         io.Writer,
+	err:         io.Writer,
+}
+
+CommandInfo :: struct {
+	name:    string,
+	usage:   string,
+	short:   string,
+	long:    string,
+	aliases: []string,
+}
+
+COMMANDS := []CommandInfo {
+	{
+		"init",
+		"envr init",
+		"Set up envr",
+		`The init command generates your initial config and saves it to
+~/.envr/config in JSON format.\n\nDuring setup, you will be prompted to select one or more ssh keys with which to
+encrypt your databse. **Make 100% sure** that you have **a remote copy** of this
+key somewhere, otherwise your data could be lost forever.`,
+		{},
+	},
+	{"scan", "envr scan", "Find and select .env files for backup", "", {}},
+	{"sync", "envr sync", "Update or restore your env backups", "", {}},
+	{"backup", "envr backup <path>", "Import a .env file into envr", "", {"add"}},
+	{"restore", "envr restore <path>", "Restore a .env file from the database", "", {}},
+	{"list", "envr list", "View your tracked files", "", {}},
+	{"remove", "envr remove <path>", "Remove a .env file from your database", "", {}},
+	{"check", "envr check [path]", "Check if files are backed up", "", {}},
+	{
+		"deps",
+		"envr deps",
+		"Check for missing binaries",
+		"envr relies on external binaries for certain functionality.\n\nThe check command reports on which binaries are available and which are not.",
+		{},
+	},
+	{"version", "envr version", "Show envr's version", "", {}},
+	{"edit-config", "envr edit-config", "Edit your config with your default editor", "", {}},
+	{
+		"nushell-completion",
+		"envr nushell-completion",
+		"Generate custom completions for nushell",
+		"",
+		{},
+	},
+}
+
+delete_command :: proc(cmd: ^Command) {
+	delete(cmd.args)
+	delete(cmd.flags)
+	delete(cmd.bool_set)
+	bufio.writer_destroy(cmd.out_buf)
+	free(cmd.out_buf)
+}
+
+// Caller is responsible for calling delete_command(cmd).
+// FIXME: Works in kinda a wonky and awkward way.
+parse_args :: proc(args: []string, out: io.Stream, err: io.Stream) -> (cmd: Command, ok: bool) {
+	{
+		cmd.out_buf = new(bufio.Writer)
+		bufio.writer_init(cmd.out_buf, out)
+		cmd.out = bufio.writer_to_writer(cmd.out_buf)
+		cmd.err = err
+	}
+
+	if len(args) < 2 || args[1] == "--help" || args[1] == "-h" {
+		write_usage(cmd.out)
+		return cmd, false
+	}
+
+	cmd.name = args[1]
+
+	cmd.args = make([dynamic]string)
+	cmd.flags = make(map[string]string)
+	cmd.bool_set = make(map[string]bool)
+
+	i := 2
+	for i < len(args) {
+		arg := args[i]
+		if strings.starts_with(arg, "--") {
+			key := arg[2:]
+			if i + 1 < len(args) && !strings.starts_with(args[i + 1], "-") {
+				cmd.flags[key] = args[i + 1]
+				i += 2
+			} else {
+				cmd.bool_set[key] = true
+				i += 1
+			}
+		} else if strings.starts_with(arg, "-") && len(arg) == 2 {
+			key_slice := arg[1:2]
+			if i + 1 < len(args) && !strings.starts_with(args[i + 1], "-") {
+				cmd.flags[key_slice] = args[i + 1]
+				i += 2
+			} else {
+				cmd.bool_set[key_slice] = true
+				i += 1
+			}
+		} else {
+			append(&cmd.args, arg)
+			i += 1
+		}
+	}
+
+	if val, ok := cmd.flags["config-file"]; ok {
+		cmd.config_path = val
+	} else if val, ok := cmd.flags["c"]; ok {
+		cmd.config_path = val
+	} else {
+		// FIXME: Handle err
+		// TODO: Is this right?
+		home, _ := os.user_home_dir(context.temp_allocator)
+		// TODO: should we copy out of the temp_allocator?
+		cmd.config_path = default_config_path(home, context.temp_allocator)
+	}
+
+	if has_flag(&cmd, "help") {
+		print_command_help(&cmd)
+		return cmd, false
+	}
+
+	return cmd, true
+}
+
+has_flag :: proc(cmd: ^Command, name: string) -> bool {
+	_, ok := cmd.flags[name]
+	if ok {
+		return true
+	}
+	_, ok2 := cmd.bool_set[name]
+	return ok2
+}
+
+find_command :: proc(name: string) -> (CommandInfo, bool) {
+	for c in COMMANDS {
+		if c.name == name {
+			return c, true
+		}
+		for a in c.aliases {
+			if a == name {
+				return c, true
+			}
+		}
+	}
+	return CommandInfo{}, false
+}
+
+write_command_help :: proc(name: string, w: io.Writer) -> bool {
+	info, found := find_command(name)
+	if !found {
+		return false
+	}
+
+	fmt.wprintf(w, "Usage: %s [flags]\n\n", info.usage, flush = false)
+	fmt.wprintf(w, "%s\n", info.short, flush = false)
+
+	if len(info.aliases) > 0 {
+		fmt.wprintf(w, "\nAliases:\n  %s", info.name, flush = false)
+		for a in info.aliases {
+			fmt.wprintf(w, ", %s", a, flush = false)
+		}
+		fmt.wprintf(w, "\n", flush = false)
+	}
+
+	if len(info.long) > 0 {
+		fmt.wprintf(w, "\n%s\n", info.long, flush = false)
+	}
+
+	fmt.wprintf(
+		w,
+		"\nFlags:\n  -h, --help   help for %s\n  -c, --config-file <path>   config file (default \"~/.envr/config.json\")\n",
+		info.name,
+		flush = false,
+	)
+	return true
+}
+
+print_command_help :: proc(cmd: ^Command) {
+	ok := write_command_help(cmd.name, cmd.out)
+	if !ok {
+		fmt.wprintf(cmd.err, "Unknown command: %s\n", cmd.name)
+		write_usage(cmd.out)
+	}
+}
+
+// TODO: command args should be shown in usage.
+write_usage :: proc(w: io.Writer) {
+	fmt.wprintf(
+		w,
+		`envr keeps your .env synced to a local, age encrypted database.
+Is a safe and easy way to gather all your .env files in one place where they can
+easily be backed by another tool such as restic or git.
+
+All your data is stored in ~/data.age
+
+Getting started is easy:
+
+1. Create your configuration file and set up encrypted storage:
+
+> envr init
+
+2. Scan for existing .env files:
+
+> envr scan
+
+Select the files you want to back up from the interactive list.
+
+3. Verify that it worked:
+
+> envr list
+
+4. After changing any of your .env files, update the backup with:
+
+> envr sync
+
+5. If you lose a repository, after re-cloning the repo into the same path it was
+at before, restore your backup with:
+
+> envr restore ~/<path to repository>/.env
+
+Usage:
+  envr [command]
+
+Available Commands:
+`,
+		flush = false,
+	)
+
+	for c in COMMANDS {
+		name_start := len(c.name)
+		fmt.wprintf(w, "%s", c.name, flush = false)
+		for a in c.aliases {
+			fmt.wprintf(w, ", %s", a, flush = false)
+			name_start += len(a) + 2
+		}
+		padding := 20 - name_start
+		if padding > 0 {
+			for _ in 0 ..< padding {
+				io.write_byte(w, ' ')
+			}
+		}
+		fmt.wprintf(w, " %s\n", c.short, flush = false)
+	}
+
+	fmt.wprintf(
+		w,
+		`
+Flags:
+  -h, --help   help for envr
+  -c, --config-file <path>   config file (default "~/.envr/config.json")
+
+Use "envr [command] --help" for more information about a command.
+`,
+		flush = false,
+	)
+}
+

cli_test.odin

@@ -0,0 +1,370 @@
+#+feature dynamic-literals
+package main
+
+import "core:bufio"
+import "core:fmt"
+import "core:strings"
+import "core:testing"
+
+@(test)
+test_usage_text_contains_all_commands :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	write_usage(strings.to_writer(&b))
+	text := strings.to_string(b)
+
+	for c in COMMANDS {
+		testing.expect(
+			t,
+			strings.contains(text, c.name),
+			fmt.tprintf("usage missing command %q", c.name),
+		)
+		for a in c.aliases {
+			testing.expect(t, strings.contains(text, a), fmt.tprintf("usage missing alias %q", a))
+		}
+	}
+}
+
+@(test)
+test_usage_text_contains_steps :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	write_usage(strings.to_writer(&b))
+	text := strings.to_string(b)
+
+	testing.expect(t, strings.contains(text, "1."), "missing step 1")
+	testing.expect(t, strings.contains(text, "2."), "missing step 2")
+	testing.expect(t, strings.contains(text, "3."), "missing step 3")
+	testing.expect(t, strings.contains(text, "4."), "missing step 4")
+	testing.expect(t, strings.contains(text, "5."), "missing step 5")
+	testing.expect(t, strings.contains(text, "> envr sync\n"), "step 4 missing 'envr sync'")
+	testing.expect(t, strings.contains(text, "> envr restore"), "step 5 missing 'envr restore'")
+}
+
+@(test)
+test_usage_text_contains_flags_and_help_hint :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	write_usage(strings.to_writer(&b))
+	text := strings.to_string(b)
+
+	testing.expect(t, strings.contains(text, "Flags:"), "missing Flags section")
+	testing.expect(t, strings.contains(text, "--help"), "missing --help flag")
+	testing.expect(t, strings.contains(text, "Use \"envr [command] --help\""), "missing help hint")
+}
+
+@(test)
+test_command_help_backup :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	ok := write_command_help("backup", strings.to_writer(&b))
+	testing.expect(t, ok, "write_command_help(\"backup\") returned false")
+
+	text := strings.to_string(b)
+	testing.expect(t, strings.contains(text, "Usage:"), "missing Usage line")
+	testing.expect(t, strings.contains(text, "envr backup <path>"), "missing usage pattern")
+	testing.expect(t, strings.contains(text, "Aliases:"), "missing Aliases section")
+	testing.expect(t, strings.contains(text, "add"), "missing 'add' alias")
+	testing.expect(t, strings.contains(text, "Flags:"), "missing Flags section")
+	testing.expect(t, strings.contains(text, "--help"), "missing --help in flags")
+}
+
+@(test)
+test_command_help_add_alias :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	ok := write_command_help("add", strings.to_writer(&b))
+	testing.expect(t, ok, "write_command_help(\"add\") returned false")
+
+	text := strings.to_string(b)
+	testing.expect(
+		t,
+		strings.contains(text, "envr backup <path>"),
+		"'add' alias should resolve to backup usage",
+	)
+	testing.expect(t, strings.contains(text, "Aliases:"), "missing Aliases section")
+}
+
+@(test)
+test_command_help_init_no_aliases :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	ok := write_command_help("init", strings.to_writer(&b))
+	testing.expect(t, ok, "write_command_help(\"init\") returned false")
+
+	text := strings.to_string(b)
+	testing.expect(t, strings.contains(text, "Usage:"), "missing Usage line")
+	testing.expect(t, !strings.contains(text, "Aliases:"), "init should not have Aliases section")
+	testing.expect(t, strings.contains(text, "Flags:"), "missing Flags section")
+	testing.expect(t, strings.contains(text, "help for init"), "missing 'help for init'")
+}
+
+@(test)
+test_command_help_unknown :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	ok := write_command_help("nonexistent", strings.to_writer(&b))
+	testing.expect(t, !ok, "write_command_help(\"nonexistent\") should return false")
+
+	text := strings.to_string(b)
+	testing.expect(t, len(text) == 0, "text should be empty for unknown command")
+}
+
+@(test)
+test_command_help_version :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	ok := write_command_help("version", strings.to_writer(&b))
+	testing.expect(t, ok, "write_command_help(\"version\") returned false")
+
+	text := strings.to_string(b)
+	testing.expect(t, strings.contains(text, "Usage:"), "missing Usage line")
+	testing.expect(
+		t,
+		!strings.contains(text, "Aliases:"),
+		"version should not have Aliases section",
+	)
+}
+
+@(test)
+test_has_flag_bool_set :: proc(t: ^testing.T) {
+	cmd := Command {
+		name = "test",
+		bool_set = map[string]bool{"force" = true},
+	}
+	defer delete(cmd.bool_set)
+
+	testing.expect(t, has_flag(&cmd, "force"), "should find flag in bool_set")
+	testing.expect(t, !has_flag(&cmd, "verbose"), "should not find missing flag")
+}
+
+@(test)
+test_has_flag_value_map :: proc(t: ^testing.T) {
+	cmd := Command {
+		name = "test",
+		flags = map[string]string{"output" = "/tmp/out"},
+	}
+	defer delete(cmd.flags)
+
+	testing.expect(t, has_flag(&cmd, "output"), "should find flag in flags map")
+	testing.expect(t, !has_flag(&cmd, "force"), "should not find missing flag")
+}
+
+@(test)
+test_has_flag_both_maps :: proc(t: ^testing.T) {
+	cmd := Command {
+		name = "test",
+		flags = map[string]string{"output" = "/tmp/out"},
+		bool_set = map[string]bool{"force" = true},
+	}
+	defer delete(cmd.flags)
+	defer delete(cmd.bool_set)
+
+	testing.expect(t, has_flag(&cmd, "output"), "should find in flags")
+	testing.expect(t, has_flag(&cmd, "force"), "should find in bool_set")
+	testing.expect(t, !has_flag(&cmd, "verbose"), "should not find missing flag")
+}
+
+@(test)
+test_has_flag_empty_command :: proc(t: ^testing.T) {
+	cmd := Command {
+		name = "test",
+	}
+	testing.expect(t, !has_flag(&cmd, "anything"), "empty command should have no flags")
+}
+
+test_parse_args :: proc(
+	args: []string,
+) -> (
+	cmd: Command,
+	ok: bool,
+	out_text: string,
+	err_text: string,
+) {
+	out_b: strings.Builder
+	strings.builder_init(&out_b)
+	defer strings.builder_destroy(&out_b)
+	err_b: strings.Builder
+	strings.builder_init(&err_b)
+	defer strings.builder_destroy(&err_b)
+
+	cmd, ok = parse_args(args, strings.to_stream(&out_b), strings.to_stream(&err_b))
+
+	if ok {
+		bufio.writer_flush(cmd.out_buf)
+		out_text = strings.to_string(out_b)
+		err_text = strings.to_string(err_b)
+	}
+
+	return
+}
+
+@(test)
+test_parse_args_bare_command :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "list"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect_value(t, cmd.name, "list")
+	testing.expect_value(t, len(cmd.args), 0)
+	testing.expect_value(t, len(cmd.flags), 0)
+	testing.expect_value(t, len(cmd.bool_set), 0)
+}
+
+@(test)
+test_parse_args_positional :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "backup", "/project/.env"})
+	defer delete_command(&cmd)
+	testing.expect(t, ok, "should succeed")
+
+	testing.expect(t, cmd.name == "backup")
+	testing.expect(t, len(cmd.args) == 1)
+	testing.expect(t, cmd.args[0] == "/project/.env")
+}
+
+@(test)
+test_parse_args_long_flag_with_value :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "sync", "--config", "x.json"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, cmd.flags["config"] == "x.json")
+}
+
+@(test)
+test_parse_args_short_flag_with_value :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "sync", "-c", "x.json"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, cmd.flags["c"] == "x.json")
+}
+
+@(test)
+test_parse_args_long_bool_flag :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "init", "--force"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, cmd.bool_set["force"] == true)
+}
+
+@(test)
+test_parse_args_short_bool_flag :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "version", "-l"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, cmd.bool_set["l"] == true)
+}
+
+@(test)
+test_parse_args_multiple_positionals :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "backup", "a", "b"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, len(cmd.args) == 2)
+	testing.expect(t, cmd.args[0] == "a")
+	testing.expect(t, cmd.args[1] == "b")
+}
+
+@(test)
+test_parse_args_mixed_flags_and_positionals :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "backup", "/project/.env", "--force"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, cmd.bool_set["force"] == true)
+	testing.expect(t, len(cmd.args) == 1)
+	testing.expect(t, cmd.args[0] == "/project/.env")
+}
+
+@(test)
+test_parse_args_no_args :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr"})
+	defer delete_command(&cmd)
+	testing.expect(t, !ok, "no args should return false")
+}
+
+@(test)
+test_parse_args_flag_then_positional_then_flag :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "backup", "a.env", "--force", "--verbose"})
+	defer delete_command(&cmd)
+	testing.expect(t, ok, "should succeed")
+
+	testing.expect(t, cmd.bool_set["force"] == true)
+	testing.expect(t, cmd.bool_set["verbose"] == true)
+	testing.expect(t, len(cmd.args) == 1)
+	testing.expect(t, cmd.args[0] == "a.env")
+}
+
+@(test)
+test_parse_args_config_file_long_flag :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args(
+		[]string{"envr", "list", "--config-file", "/custom/config.json"},
+	)
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(
+		t,
+		cmd.config_path == "/custom/config.json",
+		"config_path should be set from --config-file",
+	)
+}
+
+@(test)
+test_parse_args_config_file_short_flag :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "list", "-c", "/custom/config.json"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(
+		t,
+		cmd.config_path == "/custom/config.json",
+		"config_path should be set from -c",
+	)
+}
+
+@(test)
+test_parse_args_config_file_defaults :: proc(t: ^testing.T) {
+	cmd, ok, _, _ := test_parse_args([]string{"envr", "list"})
+	testing.expect(t, ok, "should succeed")
+	if !ok do return
+	defer delete_command(&cmd)
+
+	testing.expect(t, len(cmd.config_path) > 0, "config_path should default to non-empty path")
+	testing.expect(
+		t,
+		strings.contains(cmd.config_path, ".envr"),
+		"default config_path should contain .envr dir, got %s",
+	)
+}
+
+

cmd_backup.odin

@@ -0,0 +1,35 @@
+package main
+
+import "core:fmt"
+import "core:strings"
+
+cmd_backup :: proc(cmd: ^Command) {
+	if len(cmd.args) != 1 {
+		print_command_help(cmd)
+		return
+	}
+
+	path := cmd.args[0]
+	if len(strings.trim_space(path)) == 0 {
+		fmt.wprintln(cmd.err, "Error: No path provided", flush = false)
+		return
+	}
+
+	file, ok := new_env_file(path)
+	if !ok {
+		return
+	}
+
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	if !db_insert(&db, file) {
+		return
+	}
+
+	fmt.wprintf(cmd.out, "Saved %s into the database\n", path, flush = false)
+}
+

cmd_check.odin

@@ -0,0 +1,84 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+
+cmd_check :: proc(cmd: ^Command) {
+	feats := check_features()
+
+	check_path: string
+	if len(cmd.args) > 0 {
+		check_path = cmd.args[0]
+	} else {
+		cwd, cwd_err := os.get_working_directory(context.temp_allocator)
+		if cwd_err != nil {
+			fmt.wprintf(cmd.err, "Error getting current directory: %v\n", cwd_err, flush = false)
+			return
+		}
+		check_path = cwd
+	}
+
+	abs_path: string
+	if filepath.is_abs(check_path) {
+		abs_path = check_path
+	} else {
+		resolved, abs_err := filepath.abs(check_path)
+		if abs_err != nil {
+			fmt.wprintf(cmd.err, "Error getting absolute path: %v\n", abs_err, flush = false)
+			return
+		}
+		abs_path = resolved
+	}
+
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	is_dir := os.is_directory(abs_path)
+
+	files_in_path: [dynamic]string
+
+	if is_dir {
+		if cant_scan(feats) {
+			fmt.wprintln(
+				cmd.err,
+				"Error: please install fd to use the check command (https://github.com/sharkdp/fd)",
+				flush = false,
+			)
+			return
+		}
+
+		scanned, scan_ok := scan_path(abs_path, db.cfg)
+		if !scan_ok {
+			fmt.wprintln(cmd.err, "Error scanning directory for .env files", flush = false)
+			return
+		}
+		files_in_path = scanned
+	} else {
+		append(&files_in_path, abs_path)
+	}
+
+	db_files, list_ok := db_list(&db)
+	if !list_ok {
+		return
+	}
+
+	not_backed := find_unbacked(files_in_path[:], db_files[:])
+
+	if len(not_backed) == 0 {
+		if len(files_in_path) == 0 {
+			fmt.wprintln(cmd.out, "No .env files found in the specified directory.", flush = false)
+		} else {
+			fmt.wprintln(cmd.out, "✓ All .env files in the directory are backed up.", flush = false)
+		}
+	} else {
+		fmt.wprintf(cmd.out, "Found %d .env file(s) that are not backed up:\n", len(not_backed), flush = false)
+		for file in not_backed {
+			fmt.wprintf(cmd.out, "  %s\n", file, flush = false)
+		}
+		fmt.wprintln(cmd.out, "\nRun 'envr sync' to back up these files.", flush = false)
+	}
+}

cmd_check_test.odin

@@ -0,0 +1,48 @@
+package main
+
+import "core:fmt"
+import "core:testing"
+
+@(test)
+test_find_unbacked_finds_missing :: proc(t: ^testing.T) {
+	local := []string{"/a/.env", "/b/.env", "/c/.env"}
+	db := []EnvFile{{Path = "/a/.env"}, {Path = "/b/.env"}}
+
+	result := find_unbacked(local, db[:])
+	testing.expect(t, len(result) == 1, fmt.tprintf("expected 1 unbacked, got %d", len(result)))
+	if len(result) > 0 {
+		testing.expect(
+			t,
+			result[0] == "/c/.env",
+			fmt.tprintf("expected /c/.env, got %s", result[0]),
+		)
+	}
+}
+
+@(test)
+test_find_unbacked_all_backed :: proc(t: ^testing.T) {
+	local := []string{"/a/.env", "/b/.env"}
+	db := []EnvFile{{Path = "/a/.env"}, {Path = "/b/.env"}}
+
+	result := find_unbacked(local, db[:])
+	testing.expect(t, len(result) == 0, fmt.tprintf("expected 0 unbacked, got %d", len(result)))
+}
+
+@(test)
+test_find_unbacked_no_local :: proc(t: ^testing.T) {
+	local: []string
+	db := []EnvFile{{Path = "/a/.env"}}
+
+	result := find_unbacked(local, db[:])
+	testing.expect(t, len(result) == 0, fmt.tprintf("expected 0 unbacked, got %d", len(result)))
+}
+
+@(test)
+test_find_unbacked_none_backed :: proc(t: ^testing.T) {
+	local := []string{"/a/.env", "/b/.env"}
+	db: []EnvFile
+
+	result := find_unbacked(local, db[:])
+	testing.expect(t, len(result) == 2, fmt.tprintf("expected 2 unbacked, got %d", len(result)))
+}
+

cmd_deps.odin

@@ -0,0 +1,33 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:terminal"
+
+// TODO: Improve table rendering
+cmd_deps :: proc(cmd: ^Command) {
+	feats := check_features()
+
+	headers := []string{"Feature", "Status"}
+	rows: [dynamic][]string
+
+	if .Git in feats {
+		append(&rows, []string{"Git", "\u2713 Available"})
+	} else {
+		append(&rows, []string{"Git", "\u2717 Missing"})
+	}
+
+	if .Fd in feats {
+		append(&rows, []string{"fd", "\u2713 Available"})
+	} else {
+		append(&rows, []string{"fd", "\u2717 Missing"})
+	}
+
+	if terminal.is_terminal(os.stdout) {
+		render_table(cmd.out, headers, rows[:])
+	} else {
+		render_json_rows(cmd.out, headers, rows[:])
+		fmt.wprint(cmd.out, "\n", flush = false)
+	}
+}
+

cmd_edit_config.odin

@@ -0,0 +1,49 @@
+package main
+
+import "core:fmt"
+import "core:os"
+
+cmd_edit_config :: proc(cmd: ^Command) {
+	editor := os.get_env("EDITOR", context.allocator)
+	if len(editor) == 0 {
+		fmt.wprintln(cmd.err, "Error: $EDITOR environment variable is not set", flush = false)
+		return
+	}
+
+	config_path := cmd.config_path
+
+	_, stat_err := os.stat(config_path, context.allocator)
+	if stat_err != nil {
+		fmt.wprintf(
+			cmd.err,
+			"Config file does not exist at %s. Run 'envr init' first.\n",
+			config_path,
+			flush = false,
+		)
+		return
+	}
+
+	args := []string{editor, config_path}
+	desc := os.Process_Desc {
+		command = args,
+		stdin   = os.stdin,
+		stdout  = os.stdout,
+		stderr  = os.stderr,
+	}
+
+	p, start_err := os.process_start(desc)
+	if start_err != nil {
+		fmt.wprintf(cmd.err, "Error running editor: %v\n", start_err, flush = false)
+		return
+	}
+
+	state, wait_err := os.process_wait(p)
+	if wait_err != nil {
+		fmt.wprintf(cmd.err, "Error waiting for editor: %v\n", wait_err, flush = false)
+		return
+	}
+	if state.exit_code != 0 {
+		os.exit(int(state.exit_code))
+	}
+}
+

cmd_init.odin

@@ -0,0 +1,62 @@
+package main
+
+import "core:fmt"
+
+cmd_init :: proc(cmd: ^Command) {
+	force := has_flag(cmd, "force") || has_flag(cmd, "f")
+
+	fmt.wprintln(cmd.out, cmd.config_path, flush = false)
+
+	_, cfg_exists := load_config(cmd.config_path)
+	if cfg_exists && !force {
+		fmt.wprintln(
+			cmd.out,
+			`You have already initialized envr.
+Run again with the --force flag if you want to reinitialize.`,
+			flush = false,
+		)
+		return
+	}
+
+	keys, ok := find_ssh_private_keys()
+	if !ok {
+		return
+	}
+
+	if len(keys) == 0 {
+		fmt.wprintln(cmd.err, `No ssh-ed25519 keys found in ~/.ssh
+Generate one with: ssh-keygen -t ed25519`, flush = false)
+		return
+	}
+
+	selected, result := multi_select("Select SSH private keys:", keys[:])
+	defer delete(selected)
+	if result == .Cancel {
+		fmt.wprintln(cmd.out, "\x1b[2mCancelled.\x1b[0m", flush = false)
+		return
+	}
+
+	selected_paths := make([dynamic]string, 0, min(1, len(keys) / 2))
+	for i in 0 ..< len(keys) {
+		if selected[i] {
+			append(&selected_paths, keys[i])
+		}
+	}
+
+	if len(selected_paths) == 0 {
+		fmt.wprintln(cmd.err, "No SSH keys selected - Config not created", flush = false)
+		return
+	}
+
+	cfg := new_config(selected_paths[:], cmd.config_path)
+	if !save_config(cfg, force = force) {
+		return
+	}
+
+	fmt.wprintf(
+		cmd.out,
+		"Config initialized with %d SSH key(s). You are ready to use envr.\n",
+		len(selected_paths),
+		flush = false,
+	)
+}

cmd_list.odin

@@ -0,0 +1,66 @@
+package main
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+import "core:terminal"
+
+ListEntry :: struct {
+	Directory: string `json:"directory"`,
+	Path:      string `json:"path"`,
+}
+
+// TODO: Support --format flag
+// TODO: Improve table rendering
+cmd_list :: proc(cmd: ^Command) {
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	rows, list_ok := db_list(&db)
+	if !list_ok {
+		return
+	}
+	defer delete(rows)
+
+	if terminal.is_terminal(os.stdout) {
+		headers := []string{"Directory", "Path"}
+		table_rows := make([dynamic][]string, 0, len(rows), context.temp_allocator)
+
+		for row in rows {
+			dir_str := strings.concatenate({row.Dir, "/"}, context.temp_allocator)
+			filename := filepath.base(row.Path)
+			row_slice := make([]string, 2)
+			row_slice[0] = dir_str
+			row_slice[1] = filename
+			append(&table_rows, row_slice)
+		}
+
+		render_table(cmd.out, headers, table_rows[:])
+	} else {
+		// TODO: Should we instead print full entries here?
+		entries: [dynamic]ListEntry
+		for row in rows {
+			filename := filepath.base(row.Path)
+			append(
+				&entries,
+				ListEntry {
+					Directory = strings.concatenate({row.Dir, "/"}, context.temp_allocator),
+					Path = filename,
+				},
+			)
+		}
+
+		data, marshal_err := json.marshal(entries[:], allocator = context.temp_allocator)
+		if marshal_err != nil {
+			fmt.wprintf(cmd.err, "Error marshaling JSON: %v\n", marshal_err, flush = false)
+			return
+		}
+		fmt.wprintln(cmd.out, string(data), flush = false)
+	}
+}
+

cmd_list_test.odin

@@ -0,0 +1,18 @@
+package main
+
+import "core:path/filepath"
+import "core:testing"
+
+@(test)
+test_filepath_base_equals_rel :: proc(t: ^testing.T) {
+	cases := []string{"/home/user/.env", "/home/user/project/.envrc", "/tmp/foo", "/a/b/c/d.txt"}
+
+	for path in cases {
+		dir := filepath.dir(path)
+		rel, rel_err := filepath.rel(dir, path, context.temp_allocator)
+		testing.expect(t, rel_err == nil, "filepath.rel returned an error")
+		base := filepath.base(path)
+		testing.expect(t, rel == base, "filepath.rel(dir, path) should equal filepath.base(path)")
+	}
+}
+

cmd_nushell_completion.odin

@@ -0,0 +1,10 @@
+package main
+
+import "core:fmt"
+
+COMPLETION_SCRIPT: string : string(#load("mod.nu"))
+
+cmd_nushell_completion :: proc(cmd: ^Command) {
+	fmt.wprint(cmd.out, COMPLETION_SCRIPT, flush = false)
+}
+

cmd_nushell_completion_test.odin

@@ -0,0 +1,36 @@
+package main
+
+import "core:fmt"
+import "core:strings"
+import "core:testing"
+
+@(test)
+test_nushell_completion_nonempty :: proc(t: ^testing.T) {
+	testing.expect(t, len(COMPLETION_SCRIPT) > 0, "completion script should not be empty")
+}
+
+@(test)
+test_nushell_completion_contains_externs :: proc(t: ^testing.T) {
+	expected := []string{
+		"tracked-paths",
+		"untracked-paths",
+		"envr backup",
+		"envr check",
+		"envr edit-config",
+		"envr help",
+		"envr init",
+		"envr list",
+		"envr remove",
+		"envr restore",
+		"envr scan",
+		"envr sync",
+		"envr nushell-completion",
+	}
+	for ext in expected {
+		testing.expect(
+			t,
+			strings.contains(COMPLETION_SCRIPT, ext),
+			fmt.tprintf("expected script to contain %q", ext),
+		)
+	}
+}

cmd_remove.odin

@@ -0,0 +1,44 @@
+package main
+
+import "core:fmt"
+import "core:path/filepath"
+import "core:strings"
+
+cmd_remove :: proc(cmd: ^Command) {
+	if len(cmd.args) != 1 {
+		print_command_help(cmd)
+		return
+	}
+
+	path := cmd.args[0]
+	if len(strings.trim_space(path)) == 0 {
+		fmt.wprintln(cmd.err, "Error: No path provided", flush = false)
+		return
+	}
+
+	// TODO: Is this the best way to do it?
+	abs_path: string
+	if filepath.is_abs(path) {
+		abs_path = path
+	} else {
+		resolved, abs_err := filepath.abs(path)
+		if abs_err != nil {
+			fmt.wprintf(cmd.err, "Error getting absolute path: %v\n", abs_err, flush = false)
+			return
+		}
+		abs_path = resolved
+	}
+
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	if !db_delete(&db, abs_path) {
+		return
+	}
+
+	fmt.wprintf(cmd.out, "Removed %s from the database\n", abs_path, flush = false)
+}
+

cmd_restore.odin

@@ -0,0 +1,55 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+
+cmd_restore :: proc(cmd: ^Command) {
+	if len(cmd.args) != 1 {
+		print_command_help(cmd)
+		return
+	}
+
+	path := cmd.args[0]
+	if len(strings.trim_space(path)) == 0 {
+		fmt.wprintln(cmd.err, "Error: No path provided", flush = false)
+		return
+	}
+
+	// TODO: Is this the right way to handle this?
+	abs_path: string
+	if filepath.is_abs(path) {
+		abs_path = path
+	} else {
+		resolved, abs_err := filepath.abs(path)
+		if abs_err != nil {
+			fmt.wprintf(cmd.err, "Error getting absolute path: %v\n", abs_err, flush = false)
+			return
+		}
+		abs_path = resolved
+	}
+
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	file, fetch_ok := db_fetch(&db, abs_path)
+	if !fetch_ok {
+		return
+	}
+
+	dir := filepath.dir(file.Path)
+	os.mkdir_all(dir)
+
+	write_err := os.write_entire_file(file.Path, file.contents)
+	if write_err != nil {
+		fmt.wprintf(cmd.err, "Error writing file: %v\n", write_err, flush = false)
+		return
+	}
+
+	fmt.wprintf(cmd.out, "Restored %s\n", file.Path, flush = false)
+}
+

cmd_scan.odin

@@ -0,0 +1,110 @@
+package main
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:os"
+import "core:terminal"
+
+cmd_scan :: proc(cmd: ^Command) {
+	feats := check_features()
+	if cant_scan(feats) {
+		fmt.wprintln(
+			cmd.err,
+			"Error: please install fd to use the scan command (https://github.com/sharkdp/fd)",
+			flush = false,
+		)
+		return
+	}
+
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	search_dirs := search_paths(db.cfg)
+	if len(search_dirs) == 0 {
+		fmt.wprintln(
+			cmd.err,
+			"No search paths configured. Please run `envr init -f` or edit your config.",
+			flush = false,
+		)
+		return
+	}
+
+	// TODO: Figure out a sane default
+	all_files: [dynamic]string
+	for dir in search_dirs {
+		found, scan_ok := scan_path(dir, db.cfg)
+		if !scan_ok {
+			fmt.wprintf(cmd.err, "Error scanning %s\n", dir, flush = false)
+			continue
+		}
+		for f in found {
+			append(&all_files, f)
+		}
+	}
+
+	db_files, list_ok := db_list(&db)
+	if !list_ok {
+		return
+	}
+
+	files := find_unbacked(all_files[:], db_files[:])
+
+	if len(files) == 0 {
+		fmt.wprintln(cmd.out, "No .env files found to add.", flush = false)
+		return
+	}
+
+	if !terminal.is_terminal(os.stdout) {
+		output, marshal_err := json.marshal(files[:])
+		if marshal_err != nil {
+			fmt.wprintf(
+				cmd.err,
+				"Error marshaling files to JSON: %v\n",
+				marshal_err,
+				flush = false,
+			)
+			return
+		}
+		fmt.wprintln(cmd.out, string(output), flush = false)
+		return
+	}
+
+	selected, result := multi_select("Select .env files to backup:", files[:])
+	defer delete(selected)
+	if result == .Cancel {
+		fmt.wprintln(cmd.out, "\x1b[2mCancelled.\x1b[0m", flush = false)
+		return
+	}
+
+	added_count: int
+	for i in 0 ..< len(files) {
+		if !selected[i] {
+			continue
+		}
+		env_file, ok := new_env_file(files[i])
+		if !ok {
+			fmt.wprintf(cmd.err, "Error reading %s\n", files[i], flush = false)
+			continue
+		}
+		if !db_insert(&db, env_file) {
+			fmt.wprintf(cmd.err, "Error adding %s\n", files[i], flush = false)
+			continue
+		}
+		added_count += 1
+	}
+
+	if added_count > 0 {
+		fmt.wprintf(
+			cmd.out,
+			"\x1b[1;32mSuccessfully added %d file(s) to backup.\x1b[0m\n",
+			added_count,
+			flush = false,
+		)
+	} else {
+		fmt.wprintln(cmd.out, "\x1b[2mNo files were added.\x1b[0m", flush = false)
+	}
+}
+

cmd_sync.odin

@@ -0,0 +1,96 @@
+package main
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:os"
+import "core:strings"
+import "core:terminal"
+
+SyncEntry :: struct {
+	Path:   string `json:"path"`,
+	Status: string `json:"status"`,
+}
+
+// TODO: Check for quiet failures.
+// TODO: Support --format -f flags
+cmd_sync :: proc(cmd: ^Command) {
+	db, db_ok := db_open(cmd.config_path)
+	if !db_ok {
+		return
+	}
+	defer db_close(&db)
+
+	files, list_ok := db_list(&db)
+	if !list_ok {
+		return
+	}
+	defer delete(files)
+
+	// TODO: Set sane default size
+	results: [dynamic]SyncEntry
+	defer delete(results)
+
+	for &file in files {
+		old_path: string
+		old_path, _ = strings.clone(file.Path, context.temp_allocator)
+
+		result, err_msg := db_sync(&db, &file)
+
+		status: string
+		is_dir_updated := .DirUpdated in result
+
+		switch {
+		case .Error in result:
+			if len(err_msg) > 0 {
+				status = err_msg
+			} else {
+				status = "error"
+			}
+		case .BackedUp in result:
+			status = "Backed Up"
+		case .Restored in result:
+			status = "Restored"
+		case .DirUpdated in result:
+			status = "Moved"
+		case:
+			status = "OK"
+		}
+
+		if is_dir_updated {
+			if !db_delete(&db, old_path) {
+				return
+			}
+		}
+		if db_update_required(result) {
+			if !db_insert(&db, file) {
+				return
+			}
+		}
+
+		path_str, _ := strings.clone(file.Path)
+		status_str, _ := strings.clone(status)
+		append(&results, SyncEntry{Path = path_str, Status = status_str})
+	}
+
+	if terminal.is_terminal(os.stdout) {
+		headers := []string{"File", "Status"}
+		table_rows := make([dynamic][]string, 0, len(results))
+
+		for res in results {
+			row_slice := make([]string, 2)
+			row_slice[0] = res.Path
+			row_slice[1] = res.Status
+			append(&table_rows, row_slice)
+		}
+
+		render_table(cmd.out, headers, table_rows[:])
+	} else {
+		data, marshal_err := json.marshal(results[:])
+		if marshal_err != nil {
+			fmt.wprintf(cmd.err, "Error marshaling JSON: %v\n", marshal_err, flush = false)
+			return
+		}
+		fmt.wprintln(cmd.out, string(data), flush = false)
+	}
+}
+

cmd_version.odin

@@ -0,0 +1,10 @@
+package main
+
+import "core:fmt"
+
+VERSION :: #load("version.txt", string)
+
+cmd_version :: proc(cmd: ^Command) {
+	fmt.wprintln(cmd.out, VERSION, flush = false)
+}
+

config.odin

@@ -0,0 +1,240 @@
+package main
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+
+SshKeyPair :: struct {
+	Private: string `json:"private"`,
+	Public:  string `json:"public"`,
+}
+
+ScanConfig :: struct {
+	Matcher: string `json:"matcher"`,
+	Exclude: [dynamic]string `json:"exclude"`,
+	Include: [dynamic]string `json:"include"`,
+}
+
+Config :: struct {
+	Keys:        [dynamic]SshKeyPair `json:"keys"`,
+	ScanConfig:  ScanConfig `json:"scan"`,
+	config_path: string `json:"-"`,
+}
+
+default_config_path :: proc(home: string, allocator := context.allocator) -> string {
+	path, err := filepath.join([]string{home, ".envr", "config.json"}, allocator)
+	if err != nil {
+		panic("Ran out of memory when building config path")
+	}
+	return path
+}
+
+load_config :: proc(config_path: string) -> (Config, bool) {
+	data, read_err := os.read_entire_file_from_path(config_path, context.allocator)
+	if read_err != nil {
+		fmt.println("No config file found. Please run `envr init` to generate one.")
+		return Config{}, false
+	}
+	defer delete(data)
+
+	cfg: Config
+	// TODO: use json 5
+	err := json.unmarshal(data, &cfg)
+	if err != nil {
+		fmt.printf("Error parsing config: %v\n", err)
+		return Config{}, false
+	}
+	cfg.config_path = config_path
+
+	return cfg, true
+}
+
+delete_config :: proc(cfg: ^Config) {
+	for key in cfg.Keys {
+		delete(key.Private)
+		delete(key.Public)
+	}
+	delete(cfg.Keys)
+
+	delete(cfg.ScanConfig.Matcher)
+
+	for exclude in cfg.ScanConfig.Exclude {
+		delete(exclude)
+	}
+	delete(cfg.ScanConfig.Exclude)
+
+	for include in cfg.ScanConfig.Include {
+		delete(include)
+	}
+	delete(cfg.ScanConfig.Include)
+}
+
+envr_dir :: proc(config_path: string) -> string {
+	return filepath.dir(config_path)
+}
+
+data_path :: proc(config_path: string) -> string {
+	path, _ := filepath.join([]string{envr_dir(config_path), "data.envr"})
+	return path
+}
+
+find_ssh_private_keys :: proc() -> (keys: [dynamic]string, ok: bool) {
+	home, home_err := os.user_home_dir(context.allocator)
+	if home_err != nil {
+		fmt.printf("Error getting home dir: %v\n", home_err)
+		return
+	}
+
+	ssh_dir, join_err := filepath.join([]string{home, ".ssh"})
+	if join_err != nil {
+		fmt.printf("Error building ssh path: %v\n", join_err)
+		return
+	}
+
+	entries, dir_err := os.read_all_directory_by_path(ssh_dir, context.allocator)
+	if dir_err != nil {
+		fmt.printf("Could not read ~/.ssh directory: %v\n", dir_err)
+		return
+	}
+	defer os.file_info_slice_delete(entries, context.allocator)
+
+	for entry in entries {
+		name := entry.name
+		if entry.type == .Directory {
+			continue
+		}
+		if strings.has_suffix(name, ".pub") {
+			continue
+		}
+		if strings.contains(name, "known_hosts") {
+			continue
+		}
+		if strings.contains(name, "config") {
+			continue
+		}
+
+		full_path, _ := filepath.join([]string{ssh_dir, name})
+		if !is_ed25519_key(full_path) {
+			continue
+		}
+		append(&keys, full_path)
+	}
+
+	ok = true
+	return
+}
+
+// Caller is responsible for calling delete_config()
+new_config :: proc(
+	private_key_paths: []string,
+	cfg_path: string = "~/.envr/config.json",
+) -> Config {
+	keys := make([dynamic]SshKeyPair, 0, len(private_key_paths))
+	for priv in private_key_paths {
+		// TODO: Is this bad?
+		priv_key := strings.clone(priv)
+		pub, _ := strings.concatenate([]string{priv_key, ".pub"})
+		append(&keys, SshKeyPair{Private = priv_key, Public = pub})
+	}
+
+	exclude := make([dynamic]string, 0, 4)
+	append(&exclude, strings.clone("*\\.envrc"))
+	append(&exclude, strings.clone("\\.local/"))
+	append(&exclude, strings.clone("node_modules"))
+	append(&exclude, strings.clone("vendor"))
+
+	include := make([dynamic]string, 0, 1)
+	append(&include, strings.clone("~"))
+
+	scan_cfg := ScanConfig {
+		Matcher = strings.clone("\\.env"),
+		Exclude = exclude,
+		Include = include,
+	}
+
+	return Config{Keys = keys, ScanConfig = scan_cfg, config_path = cfg_path}
+}
+
+save_config :: proc(cfg: Config, force: bool = false) -> bool {
+	config_dir := envr_dir(cfg.config_path)
+
+	if !os.exists(config_dir) {
+		mkdir_err := os.make_directory(config_dir)
+		if mkdir_err != nil {
+			fmt.printf("Error creating %s directory: %v\n", config_dir, mkdir_err)
+			return false
+		}
+	}
+
+	if os.exists(cfg.config_path) && !force {
+		info, stat_err := os.stat(cfg.config_path, context.allocator)
+		if stat_err == nil {
+			defer os.file_info_delete(info, context.allocator)
+			if info.size > 0 {
+				fmt.println("Config file already exists. Run again with --force to reinitialize.")
+				return false
+			}
+		}
+	}
+
+	data, marshal_err := json.marshal(cfg, {pretty = true, use_spaces = true, spaces = 2})
+	if marshal_err != nil {
+		fmt.printf("Error marshaling config: %v\n", marshal_err)
+		return false
+	}
+	defer delete(data)
+
+	write_err := os.write_entire_file(cfg.config_path, data)
+	if write_err != nil {
+		fmt.printf("Error writing config: %v\n", write_err)
+		return false
+	}
+
+	return true
+}
+
+search_paths :: proc(cfg: Config) -> (paths: [dynamic]string) {
+	// TODO: Is this okay?
+	// TODO: handle error
+	home, _ := os.user_home_dir(context.temp_allocator)
+
+	for include in cfg.ScanConfig.Include {
+		// TODO: Do we need to manually expand ~/ in odin?
+		expanded, _ := strings.replace(include, "~", home, 1)
+		if filepath.is_abs(expanded) {
+			append(&paths, expanded)
+		} else {
+			defer delete(expanded)
+			resolved, err := filepath.abs(expanded)
+			if err == nil {
+				append(&paths, resolved)
+			}
+		}
+	}
+	return
+}
+
+find_git_roots :: proc(cfg: Config) -> (roots: [dynamic]string, ok: bool) {
+	paths := search_paths(cfg)
+
+	for sp in paths {
+		args := []string{"fd", "-H", "-t", "d", "^\\.git$", sp}
+		lines, fd_ok := run_fd(args)
+		if !fd_ok {
+			return
+		}
+
+		for line in lines {
+			cleaned, _ := filepath.clean(line)
+			parent := filepath.dir(cleaned)
+			cloned, _ := strings.clone(parent)
+			append(&roots, cloned)
+		}
+	}
+
+	ok = true
+	return
+}
+

config_test.odin

@@ -0,0 +1,210 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+import "core:sync"
+import "core:testing"
+
+home_mutex: sync.Mutex
+
+@(test)
+test_new_config_single_key :: proc(t: ^testing.T) {
+	paths := []string{"/home/user/.ssh/id_ed25519"}
+	cfg := new_config(paths)
+	defer delete_config(&cfg)
+
+	testing.expect(t, len(cfg.Keys) == 1, "should have 1 key")
+	testing.expect(t, cfg.Keys[0].Private == "/home/user/.ssh/id_ed25519", "Private path mismatch")
+	testing.expect(
+		t,
+		cfg.Keys[0].Public == "/home/user/.ssh/id_ed25519.pub",
+		"Public path mismatch",
+	)
+}
+
+@(test)
+test_new_config_multiple_keys :: proc(t: ^testing.T) {
+	paths := []string{"/home/user/.ssh/id_ed25519", "/home/user/.ssh/id_rsa"}
+	cfg := new_config(paths)
+	defer delete_config(&cfg)
+
+	testing.expect(t, len(cfg.Keys) == 2, "should have 2 keys")
+	testing.expect(t, cfg.Keys[0].Private == "/home/user/.ssh/id_ed25519")
+	testing.expect(t, cfg.Keys[1].Private == "/home/user/.ssh/id_rsa")
+}
+
+@(test)
+test_new_config_empty_keys :: proc(t: ^testing.T) {
+	paths: []string
+	cfg := new_config(paths)
+	defer delete_config(&cfg)
+
+	testing.expect(t, len(cfg.Keys) == 0, "should have 0 keys")
+}
+
+@(test)
+test_new_config_scan_defaults :: proc(t: ^testing.T) {
+	paths := []string{"/home/user/.ssh/id_ed25519"}
+	cfg := new_config(paths)
+	defer delete_config(&cfg)
+
+	testing.expect(t, cfg.ScanConfig.Matcher == "\\.env", "matcher should be \\.env")
+	testing.expect(t, len(cfg.ScanConfig.Exclude) == 4, "should have 4 exclude patterns")
+	testing.expect(t, len(cfg.ScanConfig.Include) == 1, "should have 1 include path")
+	testing.expect(t, cfg.ScanConfig.Include[0] == "~", "include should be ~")
+}
+
+@(test)
+test_new_config_exclude_patterns :: proc(t: ^testing.T) {
+	paths := []string{"/home/user/.ssh/id_ed25519"}
+	cfg := new_config(paths)
+	defer delete_config(&cfg)
+
+	expected := []string{"*\\.envrc", "\\.local/", "node_modules", "vendor"}
+	for i in 0 ..< len(expected) {
+		testing.expect(t, cfg.ScanConfig.Exclude[i] == expected[i])
+	}
+}
+
+@(test)
+test_save_load_config_roundtrip :: proc(t: ^testing.T) {
+	base := fmt.tprintf("/tmp/envr-test-cfg-rt-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	cfgPath, err := filepath.join([]string{base, "config.json"}, context.temp_allocator)
+	testing.expect(t, err == nil, "cfgPath should build successfully")
+
+	cfg := new_config([]string{"/home/user/.ssh/id_ed25519"}, cfgPath)
+	defer delete_config(&cfg)
+
+	testing.expect(t, save_config(cfg, force = true), "save should succeed")
+
+	loaded, ok := load_config(cfg.config_path)
+	testing.expect(t, ok, "load should succeed")
+	if !ok do return
+	defer delete_config(&loaded)
+
+	testing.expect(t, len(loaded.Keys) == 1, "should have 1 key")
+	testing.expect(t, loaded.Keys[0].Private == "/home/user/.ssh/id_ed25519")
+	testing.expect(t, loaded.Keys[0].Public == "/home/user/.ssh/id_ed25519.pub")
+	testing.expect(t, loaded.ScanConfig.Matcher == "\\.env")
+	testing.expect(t, len(loaded.ScanConfig.Exclude) == 4)
+	testing.expect(t, len(loaded.ScanConfig.Include) == 1)
+	testing.expect(t, loaded.ScanConfig.Include[0] == "~")
+}
+
+@(test)
+test_load_config_missing :: proc(t: ^testing.T) {
+	_, ok := load_config("/tmp/envr-test-cfg-nonexistent/config.json")
+	testing.expect(t, !ok, "missing config should return false")
+}
+
+@(test)
+test_save_config_no_clobber :: proc(t: ^testing.T) {
+	base := fmt.tprintf("/tmp/envr-test-cfg-noclobber-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	cfgPath, err := filepath.join([]string{base, "config.json"}, context.temp_allocator)
+	testing.expect(t, err == nil, "cfgPath should build successfully")
+
+	cfg := new_config([]string{"/home/user/.ssh/key1"}, cfgPath)
+	defer delete_config(&cfg)
+	testing.expect(t, save_config(cfg, force = true), "first save should succeed")
+
+	cfg2 := new_config([]string{"/home/user/.ssh/key2"}, cfgPath)
+	defer delete_config(&cfg2)
+	testing.expect(t, !save_config(cfg2), "second save without force should fail")
+}
+
+@(test)
+test_save_config_force_overwrites :: proc(t: ^testing.T) {
+	base := fmt.tprintf("/tmp/envr-test-cfg-force-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	cfgPath, err := filepath.join([]string{base, "config.json"}, context.temp_allocator)
+	testing.expect(t, err == nil, "cfgPath should build successfully")
+
+	cfg := new_config([]string{"/home/user/.ssh/key1"}, cfgPath)
+	defer delete_config(&cfg)
+	testing.expect(t, save_config(cfg, force = true), "first save should succeed")
+
+	cfg2 := new_config([]string{"/home/user/.ssh/key2"}, cfgPath)
+	defer delete_config(&cfg2)
+	testing.expect(t, save_config(cfg2, force = true), "force save should overwrite")
+
+	loaded, ok := load_config(cfgPath)
+	testing.expect(t, ok, "load should succeed")
+	if !ok do return
+	defer delete_config(&loaded)
+
+	testing.expect(t, len(loaded.Keys) == 1, "should have 1 key")
+	testing.expect(
+		t,
+		loaded.Keys[0].Private == "/home/user/.ssh/key2",
+		"should be the overwritten key",
+	)
+}
+
+@(test)
+test_envr_dir :: proc(t: ^testing.T) {
+	dir := envr_dir("/tmp/envr-fake-home-envrdir/.envr/config.json")
+	testing.expectf(t, strings.has_suffix(dir, ".envr"), "dir should end with .envr, got %s", dir)
+	testing.expectf(
+		t,
+		strings.contains(dir, "envr-fake-home-envrdir"),
+		"dir should contain home dir, got %s",
+		dir,
+	)
+}
+
+@(test)
+test_data_path :: proc(t: ^testing.T) {
+	p := data_path("/tmp/envr-fake-home-datapath/config.json")
+	defer delete(p)
+	testing.expectf(t, strings.has_suffix(p, "data.envr"), "should end with data.envr, got %s", p)
+	testing.expectf(t, strings.contains(p, ".envr"), "should contain .envr dir, got %s", p)
+}
+
+@(test)
+test_search_paths_expands_tilde :: proc(t: ^testing.T) {
+	sync.mutex_lock(&home_mutex)
+	defer sync.mutex_unlock(&home_mutex)
+
+	old_home := os.get_env("HOME", context.temp_allocator)
+	defer {
+		if old_home != "" {
+			os.set_env("HOME", old_home)
+		}
+	}
+
+	os.set_env("HOME", "/tmp/envr-fake-home-search")
+
+	cfg := Config {
+		ScanConfig = ScanConfig{Include = make([dynamic]string, 0, 1)},
+	}
+	defer delete(cfg.ScanConfig.Include)
+	append(&cfg.ScanConfig.Include, "~")
+
+	paths := search_paths(cfg)
+	defer delete(paths)
+	for path in paths {
+		defer delete(path)
+	}
+
+	testing.expect(t, len(paths) == 1, "should have 1 path")
+	if len(paths) > 0 {
+		testing.expectf(
+			t,
+			strings.contains(paths[0], "envr-fake-home-search"),
+			"should expand ~ to home, got %s",
+			paths[0],
+		)
+		testing.expect(t, !strings.contains(paths[0], "~"), "should not contain literal ~")
+	}
+}
+

crypto.odin

@@ -0,0 +1,338 @@
+package main
+
+import "core:fmt"
+import "core:mem"
+
+MAGIC :: "ENVR"
+MAGIC_BYTES := [4]u8{u8('E'), u8('N'), u8('V'), u8('R')}
+
+RECIPIENT_ENTRY_SIZE ::
+	CRYPTO_BOX_PUBLICKEY_BYTES +
+	CRYPTO_BOX_NONCE_BYTES +
+	CRYPTO_SECRETBOX_KEY_BYTES +
+	CRYPTO_BOX_MAC_BYTES
+
+HEADER_SIZE :: 4 + CRYPTO_BOX_PUBLICKEY_BYTES + CRYPTO_SECRETBOX_NONCE_BYTES + 4
+
+RecipientEntry :: struct {
+	PublicKey:    [CRYPTO_BOX_PUBLICKEY_BYTES]u8,
+	Nonce:        [CRYPTO_BOX_NONCE_BYTES]u8,
+	EncryptedKey: [CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES]u8,
+}
+
+sodium_initialized: bool
+
+ensure_sodium :: proc() -> bool {
+	if sodium_initialized {
+		return true
+	}
+	rc := sodium_init()
+	if rc < 0 {
+		fmt.println("Error: libsodium initialization failed")
+		return false
+	}
+	sodium_initialized = true
+	return true
+}
+
+X25519Keypair :: struct {
+	Public:  [CRYPTO_BOX_PUBLICKEY_BYTES]u8,
+	Private: [CRYPTO_BOX_SECRETKEY_BYTES]u8,
+}
+
+ssh_to_x25519 :: proc(keys: []SshKeyPair) -> (pairs: []X25519Keypair, ok: bool) {
+	if len(keys) == 0 {
+		return
+	}
+
+	pairs = make([]X25519Keypair, len(keys))
+
+	for i in 0 ..< len(keys) {
+		ssh_kp, parse_ok := parse_ssh_private_key(keys[i].Private)
+		if !parse_ok {
+			fmt.printf("Error: failed to parse SSH private key: %s\n", keys[i].Private)
+			delete(pairs)
+			return
+		}
+
+		ssh_pub, pub_ok := parse_ssh_public_key(keys[i].Public)
+		if !pub_ok {
+			fmt.printf("Error: failed to parse SSH public key: %s\n", keys[i].Public)
+			delete(pairs)
+			return
+		}
+
+		pk_rc := crypto_sign_ed25519_pk_to_curve25519(&pairs[i].Public[0], &ssh_pub[0])
+		if pk_rc != 0 {
+			fmt.println("Error: failed to convert ed25519 public key to curve25519")
+			delete(pairs)
+			return
+		}
+
+		ed25519_sk: [64]u8
+		for j in 0 ..< 32 {
+			ed25519_sk[j] = ssh_kp.Private[j]
+		}
+		for j in 0 ..< 32 {
+			ed25519_sk[32 + j] = ssh_kp.Public[j]
+		}
+
+		sk_rc := crypto_sign_ed25519_sk_to_curve25519(&pairs[i].Private[0], &ed25519_sk[0])
+		if sk_rc != 0 {
+			fmt.println("Error: failed to convert ed25519 private key to curve25519")
+			delete(pairs)
+			return
+		}
+	}
+
+	ok = true
+	return
+}
+
+encrypt :: proc(plaintext: []u8, keys: []SshKeyPair) -> (ciphertext: []u8, ok: bool) {
+	if !ensure_sodium() {
+		return
+	}
+
+	x25519_pairs, pairs_ok := ssh_to_x25519(keys)
+	if !pairs_ok {
+		return
+	}
+	defer delete(x25519_pairs)
+
+	sym_key: [CRYPTO_SECRETBOX_KEY_BYTES]u8
+	randombytes_buf(&sym_key[0], CRYPTO_SECRETBOX_KEY_BYTES)
+
+	main_nonce: [CRYPTO_SECRETBOX_NONCE_BYTES]u8
+	randombytes_buf(&main_nonce[0], CRYPTO_SECRETBOX_NONCE_BYTES)
+
+	ct_len := len(plaintext) + CRYPTO_SECRETBOX_MAC_BYTES
+	secret_ct := make([]u8, ct_len)
+	pt_ptr: [^]u8
+	if len(plaintext) > 0 {
+		pt_ptr = &plaintext[0]
+	}
+	rc := crypto_secretbox_easy(
+		&secret_ct[0],
+		pt_ptr,
+		u64(len(plaintext)),
+		&main_nonce[0],
+		&sym_key[0],
+	)
+	if rc != 0 {
+		fmt.println("Error: symmetric encryption failed")
+		delete(secret_ct)
+		return
+	}
+
+	num_recipients := u32(len(x25519_pairs))
+	entries := make([]RecipientEntry, num_recipients)
+
+	for i in 0 ..< len(x25519_pairs) {
+		for j in 0 ..< CRYPTO_BOX_PUBLICKEY_BYTES {
+			entries[i].PublicKey[j] = x25519_pairs[i].Public[j]
+		}
+
+		randombytes_buf(&entries[i].Nonce[0], CRYPTO_BOX_NONCE_BYTES)
+
+		rc = crypto_box_easy(
+			&entries[i].EncryptedKey[0],
+			&sym_key[0],
+			CRYPTO_SECRETBOX_KEY_BYTES,
+			&entries[i].Nonce[0],
+			&x25519_pairs[i].Public[0],
+			&x25519_pairs[0].Private[0],
+		)
+		if rc != 0 {
+			fmt.printf("Error: failed to encrypt for recipient %d\n", i)
+			delete(entries)
+			delete(secret_ct)
+			return
+		}
+	}
+
+	total_len := HEADER_SIZE + int(num_recipients) * RECIPIENT_ENTRY_SIZE + ct_len
+	ciphertext = make([]u8, total_len)
+
+	pos := 0
+
+	mem.copy(&ciphertext[pos], &MAGIC_BYTES[0], 4)
+	pos += 4
+
+	mem.copy(&ciphertext[pos], &x25519_pairs[0].Public[0], CRYPTO_BOX_PUBLICKEY_BYTES)
+	pos += CRYPTO_BOX_PUBLICKEY_BYTES
+
+	mem.copy(&ciphertext[pos], &main_nonce[0], CRYPTO_SECRETBOX_NONCE_BYTES)
+	pos += CRYPTO_SECRETBOX_NONCE_BYTES
+
+	ciphertext[pos] = u8((num_recipients >> 24) & 0xff)
+	ciphertext[pos + 1] = u8((num_recipients >> 16) & 0xff)
+	ciphertext[pos + 2] = u8((num_recipients >> 8) & 0xff)
+	ciphertext[pos + 3] = u8(num_recipients & 0xff)
+	pos += 4
+
+	for i in 0 ..< int(num_recipients) {
+		mem.copy(&ciphertext[pos], &entries[i].PublicKey[0], CRYPTO_BOX_PUBLICKEY_BYTES)
+		pos += CRYPTO_BOX_PUBLICKEY_BYTES
+		mem.copy(&ciphertext[pos], &entries[i].Nonce[0], CRYPTO_BOX_NONCE_BYTES)
+		pos += CRYPTO_BOX_NONCE_BYTES
+		mem.copy(
+			&ciphertext[pos],
+			&entries[i].EncryptedKey[0],
+			CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES,
+		)
+		pos += CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES
+	}
+
+	mem.copy(&ciphertext[pos], &secret_ct[0], ct_len)
+
+	delete(entries)
+	delete(secret_ct)
+	ok = true
+	return
+}
+
+decrypt :: proc(ciphertext: []u8, keys: []SshKeyPair) -> (plaintext: []u8, ok: bool) {
+	if !ensure_sodium() {
+		return
+	}
+
+	if len(ciphertext) < HEADER_SIZE {
+		fmt.println("Error: ciphertext too short (header)")
+		return
+	}
+
+	for i in 0 ..< 4 {
+		if ciphertext[i] != MAGIC_BYTES[i] {
+			fmt.println("Error: invalid magic bytes")
+			return
+		}
+	}
+
+	offset := 4
+
+	sender_pk: [CRYPTO_BOX_PUBLICKEY_BYTES]u8
+	for i in 0 ..< CRYPTO_BOX_PUBLICKEY_BYTES {
+		sender_pk[i] = ciphertext[offset + i]
+	}
+	offset += CRYPTO_BOX_PUBLICKEY_BYTES
+
+	main_nonce: [CRYPTO_SECRETBOX_NONCE_BYTES]u8
+	for i in 0 ..< CRYPTO_SECRETBOX_NONCE_BYTES {
+		main_nonce[i] = ciphertext[offset + i]
+	}
+	offset += CRYPTO_SECRETBOX_NONCE_BYTES
+
+	num_recipients :=
+		u32(ciphertext[offset]) << 24 |
+		u32(ciphertext[offset + 1]) << 16 |
+		u32(ciphertext[offset + 2]) << 8 |
+		u32(ciphertext[offset + 3])
+	offset += 4
+
+	recipients_end := offset + int(num_recipients) * RECIPIENT_ENTRY_SIZE
+	if recipients_end > len(ciphertext) {
+		fmt.println("Error: ciphertext too short (recipient data)")
+		return
+	}
+
+	enc_sym_key: [CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES]u8
+	enc_nonce: [CRYPTO_BOX_NONCE_BYTES]u8
+	enc_pub: [CRYPTO_BOX_PUBLICKEY_BYTES]u8
+
+	x25519_pairs, pairs_ok := ssh_to_x25519(keys)
+	if !pairs_ok {
+		return
+	}
+	defer delete(x25519_pairs)
+
+	found := false
+	matched_pi := 0
+	for pi in 0 ..< len(x25519_pairs) {
+		scan_offset := offset
+		for _ in 0 ..< int(num_recipients) {
+			for i in 0 ..< CRYPTO_BOX_PUBLICKEY_BYTES {
+				enc_pub[i] = ciphertext[scan_offset + i]
+			}
+			scan_offset += CRYPTO_BOX_PUBLICKEY_BYTES
+
+			match := true
+			for i in 0 ..< CRYPTO_BOX_PUBLICKEY_BYTES {
+				if enc_pub[i] != x25519_pairs[pi].Public[i] {
+					match = false
+					break
+				}
+			}
+			if !match {
+				scan_offset +=
+					CRYPTO_BOX_NONCE_BYTES + CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES
+				continue
+			}
+
+			for i in 0 ..< CRYPTO_BOX_NONCE_BYTES {
+				enc_nonce[i] = ciphertext[scan_offset + i]
+			}
+			scan_offset += CRYPTO_BOX_NONCE_BYTES
+
+			for i in 0 ..< CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES {
+				enc_sym_key[i] = ciphertext[scan_offset + i]
+			}
+			scan_offset += CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES
+
+			found = true
+			matched_pi = pi
+			break
+		}
+		if found {
+			break
+		}
+	}
+
+	if !found {
+		fmt.println("Error: no matching recipient found")
+		return
+	}
+
+	sym_key: [CRYPTO_SECRETBOX_KEY_BYTES]u8
+	rc := crypto_box_open_easy(
+		&sym_key[0],
+		&enc_sym_key[0],
+		CRYPTO_SECRETBOX_KEY_BYTES + CRYPTO_BOX_MAC_BYTES,
+		&enc_nonce[0],
+		&sender_pk[0],
+		&x25519_pairs[matched_pi].Private[0],
+	)
+	if rc != 0 {
+		fmt.println("Error: failed to decrypt symmetric key")
+		return
+	}
+
+	ct_data := ciphertext[recipients_end:]
+	pt_len := len(ct_data) - CRYPTO_SECRETBOX_MAC_BYTES
+	if pt_len < 0 {
+		fmt.println("Error: ciphertext too short (no encrypted data)")
+		return
+	}
+
+	plaintext = make([]u8, pt_len)
+	pt_ptr: [^]u8
+	if len(plaintext) > 0 {
+		pt_ptr = &plaintext[0]
+	}
+	rc = crypto_secretbox_open_easy(
+		pt_ptr,
+		&ct_data[0],
+		u64(len(ct_data)),
+		&main_nonce[0],
+		&sym_key[0],
+	)
+	if rc != 0 {
+		fmt.println("Error: symmetric decryption failed")
+		delete(plaintext)
+		return
+	}
+
+	ok = true
+	return
+}
+

crypto_test.odin

@@ -0,0 +1,134 @@
+package main
+
+import "core:fmt"
+import "core:testing"
+
+CRYPTO_TEST_KEY_DIR :: "fixtures/keys"
+
+make_test_key_pair :: proc(name: string) -> SshKeyPair {
+	priv := fmt.tprintf("%s/%s", CRYPTO_TEST_KEY_DIR, name)
+	pub := fmt.tprintf("%s/%s.pub", CRYPTO_TEST_KEY_DIR, name)
+	return SshKeyPair{Private = priv, Public = pub}
+}
+
+@(test)
+test_encrypt_decrypt_roundtrip :: proc(t: ^testing.T) {
+	key := make_test_key_pair("test_ed25519")
+	original := []u8{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
+
+	encrypted, enc_ok := encrypt(original, []SshKeyPair{key})
+	testing.expect(t, enc_ok, "encryption should succeed")
+	testing.expect(t, len(encrypted) > 0, "ciphertext should not be empty")
+	defer delete(encrypted)
+
+	decrypted, dec_ok := decrypt(encrypted, []SshKeyPair{key})
+	testing.expect(t, dec_ok, "decryption should succeed")
+	defer delete(decrypted)
+
+	testing.expect(
+		t,
+		len(decrypted) == len(original),
+		fmt.tprintf("expected %d bytes, got %d", len(original), len(decrypted)),
+	)
+	for i in 0 ..< len(original) {
+		testing.expect(t, decrypted[i] == original[i], fmt.tprintf("byte mismatch at index %d", i))
+	}
+}
+
+@(test)
+test_encrypt_decrypt_multi_recipient :: proc(t: ^testing.T) {
+	key1 := make_test_key_pair("test_ed25519")
+	key2 := make_test_key_pair("test_ed25519_second")
+	original := []u8{42, 43, 44, 45}
+
+	encrypted, enc_ok := encrypt(original, []SshKeyPair{key1, key2})
+	testing.expect(t, enc_ok, "encryption with 2 keys should succeed")
+	defer delete(encrypted)
+
+	decrypted1, dec1_ok := decrypt(encrypted, []SshKeyPair{key1})
+	testing.expect(t, dec1_ok, "decryption with key1 should succeed")
+	defer delete(decrypted1)
+
+	decrypted2, dec2_ok := decrypt(encrypted, []SshKeyPair{key2})
+	testing.expect(t, dec2_ok, "decryption with key2 should succeed")
+	defer delete(decrypted2)
+
+	for i in 0 ..< len(original) {
+		testing.expect(
+			t,
+			decrypted1[i] == original[i],
+			fmt.tprintf("key1: byte mismatch at %d", i),
+		)
+		testing.expect(
+			t,
+			decrypted2[i] == original[i],
+			fmt.tprintf("key2: byte mismatch at %d", i),
+		)
+	}
+}
+
+@(test)
+test_decrypt_wrong_key_fails :: proc(t: ^testing.T) {
+	key1 := make_test_key_pair("test_ed25519")
+	key2 := make_test_key_pair("test_ed25519_second")
+	original := []u8{1, 2, 3}
+
+	encrypted, enc_ok := encrypt(original, []SshKeyPair{key1})
+	testing.expect(t, enc_ok, "encryption should succeed")
+	defer delete(encrypted)
+
+	_, dec_ok := decrypt(encrypted, []SshKeyPair{key2})
+	testing.expect(t, !dec_ok, "decryption with wrong key should fail")
+}
+
+@(test)
+test_encrypt_empty_plaintext :: proc(t: ^testing.T) {
+	key := make_test_key_pair("test_ed25519")
+	original: []u8
+
+	encrypted, enc_ok := encrypt(original, []SshKeyPair{key})
+	testing.expect(t, enc_ok, "encryption of empty data should succeed")
+	defer delete(encrypted)
+
+	decrypted, dec_ok := decrypt(encrypted, []SshKeyPair{key})
+	testing.expect(t, dec_ok, "decryption should succeed")
+	defer delete(decrypted)
+
+	testing.expect(t, len(decrypted) == 0, "decrypted empty data should be empty")
+}
+
+@(test)
+test_recipient_can_decrypt_senders_data :: proc(t: ^testing.T) {
+	key1 := make_test_key_pair("test_ed25519")
+	key2 := make_test_key_pair("test_ed25519_second")
+	original := []u8{10, 20, 30, 40, 50}
+
+	encrypted, enc_ok := encrypt(original, []SshKeyPair{key1, key2})
+	testing.expect(t, enc_ok, "encryption with 2 keys should succeed")
+	defer delete(encrypted)
+
+	decrypted, dec_ok := decrypt(encrypted, []SshKeyPair{key2})
+	testing.expect(t, dec_ok, "second recipient should decrypt without the sender key present")
+	defer delete(decrypted)
+
+	for i in 0 ..< len(original) {
+		testing.expect(t, decrypted[i] == original[i], fmt.tprintf("byte mismatch at %d", i))
+	}
+}
+
+@(test)
+test_ciphertext_has_magic :: proc(t: ^testing.T) {
+	key := make_test_key_pair("test_ed25519")
+	original := []u8{1, 2, 3}
+
+	encrypted, enc_ok := encrypt(original, []SshKeyPair{key})
+	testing.expect(t, enc_ok, "encryption should succeed")
+	defer delete(encrypted)
+
+	testing.expect(t, len(encrypted) >= 4, "ciphertext should have at least 4 bytes")
+	testing.expect(t, encrypted[0] == u8('E'), "magic byte 0")
+	testing.expect(t, encrypted[1] == u8('N'), "magic byte 1")
+	testing.expect(t, encrypted[2] == u8('V'), "magic byte 2")
+	testing.expect(t, encrypted[3] == u8('R'), "magic byte 3")
+}
+

db.odin

@@ -0,0 +1,637 @@
+package main
+
+import "core:crypto/hash"
+import "core:encoding/hex"
+import "core:encoding/json"
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+import "core:time"
+
+import "sqlite"
+
+SyncFlagEnum :: enum {
+	Noop,
+	DirUpdated,
+	Restored,
+	BackedUp,
+	Error,
+}
+
+SyncFlag :: bit_set[SyncFlagEnum]
+
+SyncDirection :: enum {
+	TrustDatabase,
+	TrustFilesystem,
+}
+
+Db :: struct {
+	// Pointer to the sqlite db
+	db:      ^rawptr,
+	cfg:     Config,
+	changed: bool,
+}
+
+EnvFile :: struct {
+	Path:     string,
+	Dir:      string,
+	Remotes:  [dynamic]string,
+	Sha256:   string,
+	contents: string,
+}
+
+delete_envfile :: proc(f: ^EnvFile) {
+	delete(f.Path)
+	for &remote in f.Remotes {
+		delete(remote)
+	}
+	delete(f.Remotes)
+	delete(f.Sha256)
+	delete(f.contents)
+}
+
+make_temp_path :: proc() -> string {
+	ts := time.time_to_unix(time.now())
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+	fmt.sbprintf(&b, "/tmp/envr-%d-%d.db", os.get_pid(), ts)
+	return strings.to_string(b)
+}
+
+db_open :: proc(cfg_path: string) -> (Db, bool) {
+	cfg, ok := load_config(cfg_path)
+	if !ok {
+		return Db{}, false
+	}
+
+	data_path := data_path(cfg.config_path)
+	_, stat_err := os.stat(data_path, context.allocator)
+
+	db: ^rawptr
+	rc := sqlite.db_open(":memory:", &db)
+	if rc != sqlite.OK {
+		fmt.printf("Error opening in-memory database: %s\n", sqlite.db_errmsg(db))
+		return Db{}, false
+	}
+
+	create_sql: cstring = "CREATE TABLE IF NOT EXISTS envr_env_files (path TEXT PRIMARY KEY NOT NULL, remotes TEXT, sha256 TEXT NOT NULL, contents TEXT NOT NULL)"
+	rc = sqlite.db_exec(db, create_sql, nil, nil, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error creating table: %s\n", sqlite.db_errmsg(db))
+		sqlite.db_close(db)
+		return Db{}, false
+	}
+
+	if stat_err == nil {
+		if !db_restore_from_encrypted(db, cfg) {
+			sqlite.db_close(db)
+			return Db{}, false
+		}
+	}
+
+	return Db{db = db, cfg = cfg, changed = stat_err != nil}, true
+}
+
+db_close :: proc(d: ^Db) {
+	defer sqlite.db_close(d.db)
+
+	if d.changed {
+		rc := sqlite.db_exec(d.db, "VACUUM", nil, nil, nil)
+		if rc != sqlite.OK {
+			fmt.printf("Error vacuuming database: %s\n", sqlite.db_errmsg(d.db))
+			return
+		}
+
+		sz: i64
+		data := sqlite.serialize(d.db, "main", &sz, 0)
+		if data == nil {
+			fmt.println("Error: failed to serialize database")
+			return
+		}
+		defer sqlite.free(data)
+
+		sqlite_data := data[:sz]
+		encrypted, enc_ok := encrypt(sqlite_data, d.cfg.Keys[:])
+		if !enc_ok {
+			fmt.println("Error: encryption failed")
+			return
+		}
+
+		data_path := data_path(d.cfg.config_path)
+		envr_d := envr_dir(d.cfg.config_path)
+		os.mkdir_all(envr_d)
+
+		write_err := os.write_entire_file(data_path, encrypted)
+		delete(encrypted)
+		if write_err != nil {
+			fmt.printf("Error writing encrypted database: %v\n", write_err)
+			return
+		}
+
+		d.changed = false
+	}
+}
+
+// Caller is responsible for calling:
+// ```odin
+// delete(results)
+// for &result in results {
+// 	delete(&result)
+// }
+// ```
+db_list :: proc(d: ^Db, allocator := context.allocator) -> (results: [dynamic]EnvFile, ok: bool) {
+	stmt: ^rawptr
+	rc := sqlite.prepare_v2(
+		d.db,
+		"SELECT path, remotes, sha256, contents FROM envr_env_files",
+		-1,
+		&stmt,
+		nil,
+	)
+	if rc != sqlite.OK {
+		fmt.printf("Error preparing query: %s\n", sqlite.db_errmsg(d.db))
+		return
+	}
+	defer sqlite.finalize(stmt)
+
+	for {
+		rc = sqlite.step(stmt)
+		if rc == sqlite.DONE {
+			break
+		}
+		if rc != sqlite.ROW {
+			fmt.printf("Error stepping query: %s\n", sqlite.db_errmsg(d.db))
+			return
+		}
+
+		remotes_json := string(sqlite.column_text(stmt, 1))
+		remotes: [dynamic]string = ---
+		if len(remotes_json) > 0 {
+			json.unmarshal_string(remotes_json, &remotes, allocator = allocator)
+		}
+		path := clone_cstring(sqlite.column_text(stmt, 0), allocator)
+
+		append(
+			&results,
+			EnvFile {
+				Path = path,
+				Dir = filepath.dir(path),
+				Remotes = remotes,
+				Sha256 = clone_cstring(sqlite.column_text(stmt, 2), allocator),
+				contents = clone_cstring(sqlite.column_text(stmt, 3), allocator),
+			},
+		)
+	}
+
+	ok = true
+	return
+}
+
+db_restore_from_encrypted :: proc(db: ^rawptr, cfg: Config) -> bool {
+	encrypted_data, read_err := os.read_entire_file_from_path(
+		data_path(cfg.config_path),
+		context.allocator,
+	)
+	defer delete(encrypted_data)
+	if read_err != nil {
+		fmt.printf("Error reading encrypted database: %v\n", read_err)
+		return false
+	}
+
+	plaintext, dec_ok := decrypt(encrypted_data, cfg.Keys[:])
+	if !dec_ok {
+		fmt.println("Error: decryption failed")
+		return false
+	}
+	defer delete(plaintext)
+
+	n := i64(len(plaintext))
+	buf := sqlite.malloc64(n)
+	if buf == nil {
+		fmt.println("Error: failed to allocate buffer for deserialization")
+		return false
+	}
+	copy(buf[:len(plaintext)], plaintext)
+
+	rc := sqlite.deserialize(
+		db,
+		"main",
+		buf,
+		n,
+		n,
+		sqlite.DESERIALIZE_FREEONCLOSE | sqlite.DESERIALIZE_RESIZEABLE,
+	)
+	if rc != sqlite.OK {
+		sqlite.free(buf)
+		fmt.printf("Error deserializing database: %s\n", sqlite.db_errmsg(db))
+		return false
+	}
+
+	return true
+}
+
+
+get_git_remotes :: proc(dir: string) -> [dynamic]string {
+	remotes: [dynamic]string
+	remote_set: map[string]bool
+
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+	fmt.sbprintf(&b, "%s-git-remotes", make_temp_path())
+	tmp_path := strings.to_string(b)
+	tmp_file, tmp_err := os.open(tmp_path, os.O_CREATE | os.O_WRONLY | os.O_TRUNC)
+	if tmp_err != nil {
+		return remotes
+	}
+
+	args := []string{"git", "remote", "-v"}
+	desc := os.Process_Desc {
+		command     = args,
+		stdout      = tmp_file,
+		stderr      = nil,
+		working_dir = dir,
+	}
+
+	p, start_err := os.process_start(desc)
+	os.close(tmp_file)
+	if start_err != nil {
+		os.remove(tmp_path)
+		return remotes
+	}
+
+	state, wait_err := os.process_wait(p)
+	if wait_err != nil || state.exit_code != 0 {
+		os.remove(tmp_path)
+		return remotes
+	}
+
+	data, read_err := os.read_entire_file_from_path(tmp_path, context.allocator)
+	defer delete(data)
+	os.remove(tmp_path)
+	if read_err != nil {
+		return remotes
+	}
+
+	lines := strings.split(string(data), "\n")
+
+	for &line in lines {
+		line = strings.trim_space(line)
+		if len(line) == 0 {
+			continue
+		}
+		parts := strings.fields(line)
+		if len(parts) >= 2 {
+			remote_set[parts[1]] = true
+		}
+	}
+
+	for remote, _ in remote_set {
+		cloned, _ := strings.clone(remote)
+		append(&remotes, cloned)
+	}
+
+	return remotes
+}
+
+new_env_file :: proc(path: string) -> (EnvFile, bool) {
+	abs_path, abs_err := filepath.abs(path)
+	if abs_err != nil {
+		fmt.printf("Error getting absolute path: %v\n", abs_err)
+		return EnvFile{}, false
+	}
+
+	dir := filepath.dir(abs_path)
+
+	remotes := get_git_remotes(dir)
+
+	data, read_err := os.read_entire_file_from_path(abs_path, context.allocator)
+	defer delete(data)
+	if read_err != nil {
+		fmt.printf("Error reading file %s: %v\n", abs_path, read_err)
+		return EnvFile{}, false
+	}
+
+	digest := hash.hash_bytes(hash.Algorithm.SHA256, data, context.temp_allocator)
+	// TODO: Handle error
+	hex_bytes, _ := hex.encode(digest)
+
+	return EnvFile {
+			Path = abs_path,
+			Dir = dir,
+			Remotes = remotes,
+			Sha256 = string(hex_bytes),
+			contents = string(data),
+		},
+		true
+}
+
+db_insert :: proc(d: ^Db, file: EnvFile) -> bool {
+	remotes_json, marshal_err := json.marshal(file.Remotes)
+	if marshal_err != nil {
+		fmt.printf("Error marshaling remotes: %v\n", marshal_err)
+		return false
+	}
+	defer delete(remotes_json)
+
+	sql: cstring =
+		"INSERT OR REPLACE INTO " +
+		"envr_env_files (path, remotes, sha256, contents) VALUES (?, ?, ?, ?)"
+	stmt: ^rawptr
+	rc := sqlite.prepare_v2(d.db, sql, -1, &stmt, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error preparing insert: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+	defer sqlite.finalize(stmt)
+
+	// TODO: deal with elsewhere?
+	cpath := to_cstring(file.Path)
+	defer delete(cpath)
+	rc = sqlite.bind_text(stmt, 1, cpath, -1, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error binding path: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+
+	cremotes := to_cstring(string(remotes_json))
+	defer delete(cremotes)
+	rc = sqlite.bind_text(stmt, 2, cremotes, -1, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error binding remotes: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+
+	csha := to_cstring(file.Sha256)
+	defer delete(csha)
+	rc = sqlite.bind_text(stmt, 3, csha, -1, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error binding sha256: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+
+	ccontents := to_cstring(file.contents)
+	defer delete(ccontents)
+	rc = sqlite.bind_text(stmt, 4, ccontents, -1, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error binding contents: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+
+	rc = sqlite.step(stmt)
+	if rc != sqlite.DONE {
+		fmt.printf("Error inserting: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+
+	d.changed = true
+	return true
+}
+
+db_fetch :: proc(d: ^Db, path: string, allocator := context.allocator) -> (EnvFile, bool) {
+	sql: cstring = "SELECT path, remotes, sha256, contents FROM envr_env_files WHERE path = ?"
+	stmt: ^rawptr
+	rc := sqlite.prepare_v2(d.db, sql, -1, &stmt, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error preparing fetch: %s\n", sqlite.db_errmsg(d.db))
+		return EnvFile{}, false
+	}
+	defer sqlite.finalize(stmt)
+
+	cpath := to_cstring(path, allocator)
+	defer delete(cpath, allocator)
+	rc = sqlite.bind_text(stmt, 1, cpath, -1, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error binding path: %s\n", sqlite.db_errmsg(d.db))
+		return EnvFile{}, false
+	}
+	rc = sqlite.step(stmt)
+	if rc == sqlite.DONE {
+		fmt.printf("No file found with path: %s\n", path)
+		return EnvFile{}, false
+	}
+	if rc != sqlite.ROW {
+		fmt.printf("Error fetching: %s\n", sqlite.db_errmsg(d.db))
+		return EnvFile{}, false
+	}
+
+	remotes_json := string(sqlite.column_text(stmt, 1))
+	remotes: [dynamic]string = ---
+	if len(remotes_json) > 0 {
+		json.unmarshal_string(remotes_json, &remotes, allocator = allocator)
+	}
+
+	file_path := clone_cstring(sqlite.column_text(stmt, 0))
+
+	return EnvFile {
+			Path = file_path,
+			Dir = filepath.dir(file_path),
+			Remotes = remotes,
+			Sha256 = clone_cstring(sqlite.column_text(stmt, 2), allocator),
+			contents = clone_cstring(sqlite.column_text(stmt, 3), allocator),
+		},
+		true
+}
+
+db_delete :: proc(d: ^Db, path: string) -> bool {
+	sql: cstring = "DELETE FROM envr_env_files WHERE path = ?"
+	stmt: ^rawptr
+	rc := sqlite.prepare_v2(d.db, sql, -1, &stmt, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error preparing delete: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+	defer sqlite.finalize(stmt)
+
+	cpath := to_cstring(path)
+	defer delete(cpath)
+	rc = sqlite.bind_text(stmt, 1, cpath, -1, nil)
+	if rc != sqlite.OK {
+		fmt.printf("Error binding path: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+	rc = sqlite.step(stmt)
+	if rc != sqlite.DONE {
+		fmt.printf("Error deleting: %s\n", sqlite.db_errmsg(d.db))
+		return false
+	}
+
+	if sqlite.changes(d.db) == 0 {
+		fmt.printf("No file found with path: %s\n", path)
+		return false
+	}
+
+	d.changed = true
+	return true
+}
+
+to_cstring :: proc {
+	string_to_cstring,
+	strings.to_cstring,
+}
+
+string_to_cstring :: proc(s: string, allocator := context.allocator) -> cstring {
+	cs, err := strings.clone_to_cstring(s, allocator)
+	if err != nil {
+		fmt.printf("Failed to convert string to cstring: %v\n", err)
+		panic("Allocation Exception")
+	}
+	return cs
+}
+
+clone_cstring :: proc(c: cstring, allocator := context.allocator) -> string {
+	str, err := strings.clone_from_cstring(c, allocator)
+	if err != nil {
+		fmt.printf("Failed to convert string to cstring: %v\n", err)
+		delete(str)
+		panic("Allocation Exception")
+	}
+
+	return str
+}
+
+db_update_required :: proc(status: SyncFlag) -> bool {
+	return .BackedUp in status || .DirUpdated in status
+}
+
+shares_remote :: proc(f: ^EnvFile, remotes: []string) -> bool {
+	for r1 in f.Remotes {
+		for r2 in remotes {
+			if r1 == r2 {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+update_dir :: proc(f: ^EnvFile, new_dir: string) {
+	f.Dir = new_dir
+	base := filepath.base(f.Path)
+	new_path, _ := strings.concatenate({new_dir, "/", base})
+	f.Path = new_path
+	f.Remotes = get_git_remotes(new_dir)
+}
+
+find_moved_dirs :: proc(d: ^Db, f: ^EnvFile) -> ([dynamic]string, bool) {
+	feats := check_features()
+	if .Fd not_in feats || .Git not_in feats {
+		fmt.println("Error: fd and git are required for moved dir detection")
+		return {}, false
+	}
+
+	roots, roots_ok := find_git_roots(d.cfg)
+	if !roots_ok {
+		return {}, false
+	}
+
+	moved: [dynamic]string
+	for root in roots {
+		remotes := get_git_remotes(root)
+		if shares_remote(f, remotes[:]) {
+			cloned, _ := strings.clone(root)
+			append(&moved, cloned)
+		}
+	}
+	return moved, true
+}
+
+db_sync :: proc(d: ^Db, f: ^EnvFile) -> (SyncFlag, string) {
+	return env_file_sync(f, .TrustFilesystem, d)
+}
+
+// If SyncFlag is .BackedUp, Caller is responsible for calling delete on f.contents and f.Sha256
+env_file_sync :: proc(f: ^EnvFile, dir: SyncDirection, d: ^Db) -> (SyncFlag, string) {
+	result: SyncFlag = {}
+
+	_, stat_err := os.stat(f.Dir, context.allocator)
+	if stat_err != nil {
+		moved_dirs: [dynamic]string
+
+		if d != nil {
+			dirs, dirs_ok := find_moved_dirs(d, f)
+			if !dirs_ok {
+				return {.Error}, "failed to find moved dirs"
+			}
+			moved_dirs = dirs
+		}
+
+		if len(moved_dirs) == 0 {
+			return {.Error}, "directory missing"
+		} else if len(moved_dirs) == 1 {
+			update_dir(f, moved_dirs[0])
+			result = {.DirUpdated}
+		} else {
+			return {.Error}, "multiple directories found"
+		}
+	}
+
+	_, file_stat_err := os.stat(f.Path, context.allocator)
+	if file_stat_err != nil {
+		write_err := os.write_entire_file(f.Path, f.contents)
+		if write_err != nil {
+			msg, _ := strings.concatenate({"failed to write file: ", fmt.tprintf("%v", write_err)})
+			return {.Error}, msg
+		}
+
+		return result + {.Restored}, ""
+	}
+
+	data, read_err := os.read_entire_file_from_path(f.Path, context.allocator)
+	if read_err != nil {
+		msg, _ := strings.concatenate(
+			{"failed to read file for SHA comparison: ", fmt.tprintf("%v", read_err)},
+		)
+		return {.Error}, msg
+	}
+
+	digest := hash.hash_bytes(hash.Algorithm.SHA256, data)
+	// TODO: Handle error
+	hex_bytes, _ := hex.encode(digest)
+	current_sha := string(hex_bytes)
+
+	if current_sha == f.Sha256 {
+		return result, ""
+	}
+
+	switch dir {
+	case .TrustDatabase:
+		write_err := os.write_entire_file(f.Path, f.contents)
+		if write_err != nil {
+			msg, _ := strings.concatenate({"failed to write file: ", fmt.tprintf("%v", write_err)})
+			return {.Error}, msg
+		}
+		return result + {.Restored}, ""
+	case .TrustFilesystem:
+		if !env_file_backup(f) {
+			return {.Error}, "failed to backup file"
+		}
+		return result + {.BackedUp}, ""
+	}
+
+	return result, ""
+}
+
+// Loads the contents of the the file at f.Path into f.contents
+//
+// Caller is responsible for calling delete on f.contents and f.Sha256
+env_file_backup :: proc(f: ^EnvFile) -> bool {
+	data, read_err := os.read_entire_file_from_path(f.Path, context.allocator)
+	if read_err != nil {
+		fmt.printf("Error reading file %s: %v\n", f.Path, read_err)
+		return false
+	}
+
+	f.contents = string(data)
+	digest := hash.hash_bytes(hash.Algorithm.SHA256, data, context.temp_allocator)
+	hex_bytes, alloc_err := hex.encode(digest)
+	if alloc_err != nil {
+		fmt.printf("Error generating hash for file %s: %v\n", f.Path, alloc_err)
+		return false
+	}
+	f.Sha256 = string(hex_bytes)
+	return true
+}
+

db_integration_test.odin

@@ -0,0 +1,337 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+import "core:testing"
+
+import "sqlite"
+
+FIXTURES :: "fixtures"
+
+fixture_key :: proc() -> SshKeyPair {
+	priv, _ := strings.concatenate(
+		[]string{FIXTURES, "/keys/insecure-test-key"},
+		context.temp_allocator,
+	)
+	pub, _ := strings.concatenate(
+		[]string{FIXTURES, "/keys/insecure-test-key.pub"},
+		context.temp_allocator,
+	)
+	return SshKeyPair{Private = priv, Public = pub}
+}
+
+fixture_db_path :: proc() -> string {
+	p, _ := strings.concatenate([]string{FIXTURES, "/single-file.db"}, context.temp_allocator)
+	return p
+}
+
+fixture_config :: proc() -> Config {
+	cfg := Config {
+		Keys = make([dynamic]SshKeyPair, 0, 1),
+	}
+	append(&cfg.Keys, fixture_key())
+	return cfg
+}
+
+@(test)
+test_encrypt_decrypt_sqlite_roundtrip :: proc(t: ^testing.T) {
+	cfg := fixture_config()
+	defer {
+		delete(cfg.Keys)
+	}
+
+	db_path := fixture_db_path()
+	sqlite_data, read_err := os.read_entire_file_from_path(db_path, context.allocator)
+	testing.expectf(t, read_err == nil, "failed to read fixture db: %v", read_err)
+	if read_err != nil {
+		return
+	}
+	defer delete(sqlite_data)
+
+	encrypted, enc_ok := encrypt(sqlite_data, cfg.Keys[:])
+	testing.expect(t, enc_ok, "encryption should succeed")
+	if !enc_ok {
+		return
+	}
+	defer delete(encrypted)
+
+	testing.expect(t, len(encrypted) >= HEADER_SIZE, "ciphertext should have header")
+	testing.expect(t, encrypted[0] == u8('E'), "magic byte 0")
+	testing.expect(t, encrypted[1] == u8('N'), "magic byte 1")
+	testing.expect(t, encrypted[2] == u8('V'), "magic byte 2")
+	testing.expect(t, encrypted[3] == u8('R'), "magic byte 3")
+
+	plaintext, dec_ok := decrypt(encrypted, cfg.Keys[:])
+	testing.expect(t, dec_ok, "decryption should succeed")
+	if !dec_ok {
+		return
+	}
+	defer delete(plaintext)
+
+	testing.expectf(
+		t,
+		len(plaintext) == len(sqlite_data),
+		"round-trip size mismatch: expected %d, got %d",
+		len(sqlite_data),
+		len(plaintext),
+	)
+
+	match := true
+	for i in 0 ..< len(sqlite_data) {
+		if plaintext[i] != sqlite_data[i] {
+			match = false
+			break
+		}
+	}
+	testing.expect(t, match, "decrypted data should match original")
+}
+
+@(test)
+test_encrypt_write_read_decrypt :: proc(t: ^testing.T) {
+	cfg := fixture_config()
+	defer {
+		delete(cfg.Keys)
+	}
+
+	db_path := fixture_db_path()
+	sqlite_data, read_err := os.read_entire_file_from_path(db_path, context.allocator)
+	testing.expectf(t, read_err == nil, "failed to read fixture db: %v", read_err)
+	if read_err != nil {
+		return
+	}
+	defer delete(sqlite_data)
+
+	encrypted, enc_ok := encrypt(sqlite_data, cfg.Keys[:])
+	testing.expect(t, enc_ok, "encryption should succeed")
+	if !enc_ok {
+		return
+	}
+	defer delete(encrypted)
+
+	tmp_enc_path := fmt.tprintf("/tmp/envr-test-ewrd-%d.envr", os.get_pid())
+	write_err := os.write_entire_file(tmp_enc_path, encrypted)
+	testing.expectf(t, write_err == nil, "failed to write encrypted file: %v", write_err)
+	if write_err != nil {
+		return
+	}
+	defer os.remove(tmp_enc_path)
+
+	read_back, rb_err := os.read_entire_file_from_path(tmp_enc_path, context.allocator)
+	testing.expectf(t, rb_err == nil, "failed to read back encrypted file: %v", rb_err)
+	if rb_err != nil {
+		return
+	}
+	defer delete(read_back)
+
+	plaintext, dec_ok := decrypt(read_back, cfg.Keys[:])
+	testing.expect(t, dec_ok, "decryption after write/read should succeed")
+	if !dec_ok {
+		return
+	}
+	defer delete(plaintext)
+
+	testing.expect(t, len(plaintext) == len(sqlite_data), "size mismatch after file round-trip")
+}
+
+@(test)
+test_decrypt_then_deserialize_sqlite :: proc(t: ^testing.T) {
+	cfg := fixture_config()
+	defer {
+		delete(cfg.Keys)
+	}
+
+	db_path := fixture_db_path()
+	sqlite_data, read_err := os.read_entire_file_from_path(db_path, context.allocator)
+	testing.expectf(t, read_err == nil, "failed to read fixture db: %v", read_err)
+	if read_err != nil {
+		return
+	}
+	defer delete(sqlite_data)
+
+	encrypted, enc_ok := encrypt(sqlite_data, cfg.Keys[:])
+	testing.expect(t, enc_ok, "encryption should succeed")
+	if !enc_ok {
+		return
+	}
+	defer delete(encrypted)
+
+	plaintext, dec_ok := decrypt(encrypted, cfg.Keys[:])
+	testing.expect(t, dec_ok, "decryption should succeed")
+	if !dec_ok {
+		return
+	}
+	defer delete(plaintext)
+
+	mem_db: ^rawptr
+	rc := sqlite.db_open(":memory:", &mem_db)
+	testing.expectf(t, rc == sqlite.OK, "failed to open in-memory db")
+	if rc != sqlite.OK {
+		return
+	}
+	defer sqlite.db_close(mem_db)
+
+	n := i64(len(plaintext))
+	buf := sqlite.malloc64(n)
+	testing.expect(t, buf != nil, "malloc64 should succeed")
+	if buf == nil do return
+	copy(buf[:len(plaintext)], plaintext)
+
+	rc = sqlite.deserialize(
+		mem_db,
+		"main",
+		buf,
+		n,
+		n,
+		sqlite.DESERIALIZE_FREEONCLOSE | sqlite.DESERIALIZE_RESIZEABLE,
+	)
+	testing.expect(t, rc == sqlite.OK, "deserialize should succeed")
+	if rc != sqlite.OK {
+		sqlite.free(buf)
+		return
+	}
+
+	sql: cstring = "SELECT path FROM envr_env_files"
+	stmt: ^rawptr
+	rc = sqlite.prepare_v2(mem_db, sql, -1, &stmt, nil)
+	testing.expect(t, rc == sqlite.OK, "prepare failed")
+	if rc != sqlite.OK {
+		return
+	}
+	defer sqlite.finalize(stmt)
+
+	rc = sqlite.step(stmt)
+	testing.expect(t, rc == sqlite.ROW, "expected at least one row")
+	if rc == sqlite.ROW {
+		path := string(sqlite.column_text(stmt, 0))
+		testing.expect(t, len(path) > 0, "path should not be empty")
+	}
+}
+
+@(test)
+test_full_db_cycle :: proc(t: ^testing.T) {
+	cfg := fixture_config()
+	defer delete(cfg.Keys)
+
+	db_path := fixture_db_path()
+	original_data, read_err := os.read_entire_file_from_path(db_path, context.allocator)
+	testing.expectf(t, read_err == nil, "failed to read fixture db: %v", read_err)
+	if read_err != nil {
+		return
+	}
+	defer delete(original_data)
+
+	encrypted, enc_ok := encrypt(original_data, cfg.Keys[:])
+	testing.expect(t, enc_ok, "first encryption should succeed")
+	if !enc_ok {
+		return
+	}
+	defer delete(encrypted)
+
+	envr_dir_path := fmt.tprintf("/tmp/envr-test-cycle-%d/.envr", os.get_pid())
+	os.mkdir_all(envr_dir_path)
+
+	data_path, _ := filepath.join([]string{envr_dir_path, "data.envr"})
+	defer delete(data_path)
+	write_err := os.write_entire_file(data_path, encrypted)
+	testing.expectf(t, write_err == nil, "failed to write data.envr: %v", write_err)
+	if write_err != nil {
+		return
+	}
+
+	read_back, rb_err := os.read_entire_file_from_path(data_path, context.allocator)
+	testing.expectf(t, rb_err == nil, "failed to read data.envr: %v", rb_err)
+	if rb_err != nil {
+		return
+	}
+	defer delete(read_back)
+
+	plaintext, dec_ok := decrypt(read_back, cfg.Keys[:])
+	testing.expect(t, dec_ok, "decryption should succeed")
+	if !dec_ok {
+		return
+	}
+	defer delete(plaintext)
+
+	encrypted2, enc2_ok := encrypt(plaintext, cfg.Keys[:])
+	testing.expect(t, enc2_ok, "re-encryption should succeed")
+	if !enc2_ok {
+		return
+	}
+	defer delete(encrypted2)
+
+	plaintext2, dec2_ok := decrypt(encrypted2, cfg.Keys[:])
+	testing.expect(t, dec2_ok, "second decryption should succeed")
+	if !dec2_ok {
+		return
+	}
+	defer delete(plaintext2)
+
+	testing.expect(
+		t,
+		len(plaintext2) == len(original_data),
+		fmt.tprintf(
+			"double round-trip size mismatch: expected %d, got %d",
+			len(original_data),
+			len(plaintext2),
+		),
+	)
+
+	os.remove(data_path)
+	os.remove(envr_dir_path)
+	home := filepath.dir(filepath.dir(envr_dir_path))
+	os.remove(home)
+}
+
+@(test)
+test_ssh_key_parse_from_fixtures :: proc(t: ^testing.T) {
+	key := fixture_key()
+
+	priv_kp, priv_ok := parse_ssh_private_key(key.Private)
+	testing.expect(t, priv_ok, "should parse private key from fixtures")
+	if !priv_ok {
+		return
+	}
+
+	pub_key, pub_ok := parse_ssh_public_key(key.Public)
+	testing.expect(t, pub_ok, "should parse public key from fixtures")
+	if !pub_ok {
+		return
+	}
+
+	for i in 0 ..< 32 {
+		testing.expectf(t, priv_kp.Public[i] == pub_key[i], "public key mismatch at byte %d", i)
+	}
+
+	x25519_pairs, x_ok := ssh_to_x25519([]SshKeyPair{key})
+	testing.expect(t, x_ok, "ssh_to_x25519 should succeed")
+	if !x_ok {
+		return
+	}
+	defer delete(x25519_pairs)
+
+	testing.expect(t, len(x25519_pairs) == 1, "should have 1 x25519 keypair")
+}
+
+@(test)
+test_config_load_with_fixture_key :: proc(t: ^testing.T) {
+	cfg := fixture_config()
+	defer {
+		delete(cfg.Keys)
+	}
+
+	testing.expect(t, len(cfg.Keys) == 1, "should have 1 key")
+
+	key := cfg.Keys[0]
+
+	testing.expectf(t, len(key.Private) > 0, "private key path should not be empty")
+	testing.expectf(t, len(key.Public) > 0, "public key path should not be empty")
+
+	_, priv_ok := parse_ssh_private_key(key.Private)
+	testing.expect(t, priv_ok, "should parse private key using config paths")
+	if !priv_ok {
+		fmt.printf("  private key path was: '%s'\n", key.Private)
+	}
+}
+

db_test.odin

@@ -0,0 +1,400 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+import "core:testing"
+
+import "sqlite"
+
+make_test_db :: proc() -> (Db, bool) {
+	db: ^rawptr
+	rc := sqlite.db_open(":memory:", &db)
+	if rc != sqlite.OK {
+		return Db{}, false
+	}
+
+	create_sql: cstring = "CREATE TABLE IF NOT EXISTS envr_env_files (path TEXT PRIMARY KEY NOT NULL, remotes TEXT, sha256 TEXT NOT NULL, contents TEXT NOT NULL)"
+	rc = sqlite.db_exec(db, create_sql, nil, nil, nil)
+	if rc != sqlite.OK {
+		sqlite.db_close(db)
+		return Db{}, false
+	}
+
+	return Db{db = db}, true
+}
+
+make_test_env_file :: proc(path, sha, contents: string, remotes: []string = {}) -> EnvFile {
+	f := EnvFile {
+		Path     = path,
+		Dir      = "",
+		Sha256   = sha,
+		contents = contents,
+		Remotes  = make([dynamic]string, 0, len(remotes)),
+	}
+	for r in remotes {
+		append(&f.Remotes, r)
+	}
+	return f
+}
+
+@(test)
+test_db_insert_and_fetch :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	path := "/project/.env"
+	sha := "abc123"
+	contents := "SECRET=value"
+
+	f := make_test_env_file(path, sha, contents, []string{"git@github.com:user/repo.git"})
+	defer delete(f.Remotes)
+
+	testing.expect(t, db_insert(&d, f), "insert should succeed")
+
+	fetched, fetch_ok := db_fetch(&d, "/project/.env")
+	defer delete_envfile(&fetched)
+	testing.expect(t, fetch_ok, "fetch should succeed")
+	if !fetch_ok do return
+
+	testing.expect_value(t, fetched.Path, path)
+	testing.expect_value(t, fetched.Sha256, sha)
+	testing.expect_value(t, fetched.contents, contents)
+	testing.expect_value(t, len(fetched.Remotes), 1)
+	testing.expect_value(t, fetched.Remotes[0], "git@github.com:user/repo.git")
+}
+
+@(test)
+test_db_fetch_missing :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	_, fetch_ok := db_fetch(&d, "/nonexistent/.env")
+	testing.expect(t, !fetch_ok, "fetch missing should return false")
+}
+
+@(test)
+test_db_insert_or_replace :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	f1 := make_test_env_file("/project/.env", "sha1", "KEY=old")
+	defer delete(f1.Remotes)
+	testing.expect(t, db_insert(&d, f1), "first insert should succeed")
+
+	f2 := make_test_env_file("/project/.env", "sha2", "KEY=new")
+	defer delete(f2.Remotes)
+	testing.expect(t, db_insert(&d, f2), "second insert should succeed")
+
+	results, list_ok := db_list(&d)
+	testing.expect(t, list_ok, "list should succeed")
+	if !list_ok do return
+	defer delete(results)
+	for &result in results {
+		defer delete_envfile(&result)
+	}
+
+	testing.expect(t, len(results) == 1, "should have 1 row, not 2")
+
+	fetched, fetch_ok := db_fetch(&d, "/project/.env")
+	testing.expect(t, fetch_ok, "fetch should succeed")
+	if !fetch_ok do return
+	defer delete_envfile(&fetched)
+
+	testing.expect_value(t, fetched.contents, "KEY=new")
+	testing.expect_value(t, fetched.Sha256, "sha2")
+}
+
+@(test)
+test_db_delete_existing :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	f := make_test_env_file("/project/.env", "sha", "KEY=val")
+	defer delete(f.Remotes)
+	db_insert(&d, f)
+
+	testing.expect(t, db_delete(&d, "/project/.env"), "delete should return true")
+
+	_, fetch_ok := db_fetch(&d, "/project/.env")
+	testing.expect(t, !fetch_ok, "row should be gone after delete")
+}
+
+@(test)
+test_db_delete_missing :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	testing.expect(t, !db_delete(&d, "/nonexistent/.env"), "delete missing should return false")
+}
+
+@(test)
+test_db_list_multiple :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	f1 := make_test_env_file("/proj1/.env", "sha1", "A=1", []string{"git@github.com:a/repo.git"})
+	defer delete(f1.Remotes)
+	f2 := make_test_env_file("/proj2/.env", "sha2", "B=2", []string{"git@github.com:b/repo.git"})
+	defer delete(f2.Remotes)
+	f3 := make_test_env_file("/proj3/.env", "sha3", "C=3")
+
+	db_insert(&d, f1)
+	db_insert(&d, f2)
+	db_insert(&d, f3)
+
+	results, list_ok := db_list(&d)
+	testing.expect(t, list_ok, "list should succeed")
+	if !list_ok do return
+	defer delete(results)
+	defer {
+		for &result in results {
+			delete_envfile(&result)
+		}
+	}
+
+	testing.expect_value(t, len(results), 3)
+}
+
+@(test)
+test_db_list_empty :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	results, list_ok := db_list(&d)
+	testing.expect(t, list_ok, "list should succeed on empty db")
+	testing.expect(t, len(results) == 0, "should have 0 rows")
+	if list_ok do delete(results)
+}
+
+@(test)
+test_db_insert_sets_changed :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	testing.expect(t, !d.changed, "changed should start false")
+
+	f := make_test_env_file("/project/.env", "sha", "KEY=val")
+	defer delete(f.Remotes)
+	db_insert(&d, f)
+
+	testing.expect(t, d.changed, "changed should be true after insert")
+}
+
+@(test)
+test_db_delete_sets_changed :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	f := make_test_env_file("/project/.env", "sha", "KEY=val")
+	defer delete(f.Remotes)
+	db_insert(&d, f)
+	d.changed = false
+
+	db_delete(&d, "/project/.env")
+	testing.expect(t, d.changed, "changed should be true after delete")
+}
+
+@(test)
+test_db_serialize :: proc(t: ^testing.T) {
+	d, ok := make_test_db()
+	testing.expect(t, ok, "failed to create test db")
+	if !ok do return
+	defer sqlite.db_close(d.db)
+
+	f := make_test_env_file("/project/.env", "sha", "KEY=val")
+	defer delete(f.Remotes)
+	db_insert(&d, f)
+
+	sz: i64
+	data := sqlite.serialize(d.db, "main", &sz, 0)
+	testing.expect(t, data != nil, "serialize should return non-nil")
+	if data == nil do return
+	defer sqlite.free(data)
+
+	testing.expect(t, sz > 0, "serialized size should be > 0")
+}
+
+@(test)
+test_db_update_required_noop :: proc(t: ^testing.T) {
+	testing.expect(t, !db_update_required({}), "Noop should not require update")
+}
+
+@(test)
+test_db_update_required_backed_up :: proc(t: ^testing.T) {
+	testing.expect(t, db_update_required({.BackedUp}), "BackedUp should require update")
+}
+
+@(test)
+test_db_update_required_dir_updated :: proc(t: ^testing.T) {
+	testing.expect(t, db_update_required({.DirUpdated}), "DirUpdated should require update")
+}
+
+@(test)
+test_db_update_required_restored :: proc(t: ^testing.T) {
+	testing.expect(t, !db_update_required({.Restored}), "Restored alone should not require update")
+}
+
+@(test)
+test_db_update_required_error :: proc(t: ^testing.T) {
+	testing.expect(t, !db_update_required({.Error}), "Error alone should not require update")
+}
+
+@(test)
+test_db_update_required_combined :: proc(t: ^testing.T) {
+	combined := SyncFlag{.DirUpdated, .Restored}
+	testing.expect(t, db_update_required(combined), "DirUpdated|Restored should require update")
+}
+
+@(test)
+test_shares_remote_overlap :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Remotes = make([dynamic]string, 2, context.temp_allocator),
+	}
+	append(&f.Remotes, "git@github.com:user/repo.git")
+	append(&f.Remotes, "git@gitlab.com:user/repo.git")
+
+	remotes := []string{"git@github.com:user/repo.git"}
+	testing.expect(t, shares_remote(&f, remotes), "should share remote")
+}
+
+@(test)
+test_shares_remote_no_overlap :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Remotes = make([dynamic]string, 1, context.temp_allocator),
+	}
+	append(&f.Remotes, "git@github.com:user/repo.git")
+
+	remotes := []string{"git@github.com:other/repo.git"}
+	testing.expect(t, !shares_remote(&f, remotes), "should not share remote")
+}
+
+@(test)
+test_shares_remote_empty_file_remotes :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Remotes = make([dynamic]string, 0, context.temp_allocator),
+	}
+
+	remotes := []string{"git@github.com:user/repo.git"}
+	testing.expect(t, !shares_remote(&f, remotes), "empty file remotes should not share")
+}
+
+@(test)
+test_shares_remote_empty_check_remotes :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Remotes = make([dynamic]string, 1, context.temp_allocator),
+	}
+	append(&f.Remotes, "git@github.com:user/repo.git")
+
+	remotes: []string
+	testing.expect(t, !shares_remote(&f, remotes), "empty check remotes should not share")
+}
+
+@(test)
+test_shares_remote_both_empty :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Remotes = make([dynamic]string, 0),
+	}
+
+	remotes: []string
+	testing.expect(t, !shares_remote(&f, remotes), "both empty should not share")
+}
+
+@(test)
+test_make_temp_path_format :: proc(t: ^testing.T) {
+	p := make_temp_path()
+	testing.expect(t, strings.has_suffix(p, ".db"), "should end with .db")
+	testing.expect(t, strings.contains(p, fmt.tprintf("%d", os.get_pid())), "should contain PID")
+}
+
+@(test)
+test_new_env_file :: proc(t: ^testing.T) {
+	base := fmt.tprintf("/tmp/envr-test-envfile-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	env_path := fmt.tprintf("%s/.env", base)
+	err := os.write_entire_file(env_path, "SECRET=value\n")
+	testing.expect(t, err == nil, ".env file should exists")
+
+	file, ok := new_env_file(env_path)
+	testing.expect(t, ok, "new_env_file should succeed")
+	if !ok do return
+	defer delete(file.Remotes)
+	defer delete(file.Sha256)
+	defer delete(file.Path)
+
+	testing.expect(t, filepath.is_abs(file.Path), "path should be absolute")
+	testing.expect(t, strings.has_suffix(file.Path, "/.env"), "path should end with /.env")
+	testing.expect(t, file.contents == "SECRET=value\n", "contents mismatch")
+	testing.expect(t, len(file.Sha256) == 64, "sha256 should be 64 hex chars")
+}
+
+@(test)
+test_new_env_file_missing :: proc(t: ^testing.T) {
+	_, ok := new_env_file("/tmp/envr-nonexistent-envfile/path/.env")
+	testing.expect(t, !ok, "missing file should return false")
+}
+
+@(test)
+test_env_file_backup :: proc(t: ^testing.T) {
+	base := fmt.tprintf("/tmp/envr-test-backup-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	env_path := fmt.tprintf("%s/.env", base)
+	err := os.write_entire_file(env_path, "KEY=12345\n")
+	testing.expect(t, err == nil, ".env file should exist")
+
+	f := EnvFile {
+		Path = env_path,
+	}
+	defer delete(f.contents)
+	defer delete(f.Sha256)
+	testing.expect(t, env_file_backup(&f), "backup should succeed")
+	testing.expect_value(t, f.contents, "KEY=12345\n")
+	testing.expect_value(t, len(f.Sha256), 64)
+}
+
+@(test)
+test_env_file_backup_missing :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Path = "/tmp/envr-nonexistent-backup/.env",
+	}
+	testing.expect(t, !env_file_backup(&f), "missing file should return false")
+}
+
+@(test)
+test_update_dir :: proc(t: ^testing.T) {
+	f := EnvFile {
+		Path    = "/old/project/.env",
+		Dir     = "/old/project",
+		Remotes = make([dynamic]string, 0),
+	}
+	defer delete_envfile(&f)
+
+	update_dir(&f, "/new/location")
+
+	testing.expect_value(t, f.Dir, "/new/location")
+	testing.expect_value(t, f.Path, "/new/location/.env")
+}
+

docs/cli/envr.md

@@ -0,0 +1,58 @@
+## envr
+
+Manage your .env files.
+
+### Synopsis
+
+envr keeps your .env synced to a local, age encrypted database.
+Is a safe and eay way to gather all your .env files in one place where they can
+easily be backed by another tool such as restic or git.
+
+All your data is stored in ~/data.age
+
+Getting started is easy:
+
+1. Create your configuration file and set up encrypted storage:
+
+> envr init
+
+2. Scan for existing .env files:
+
+> envr scan
+
+Select the files you want to back up from the interactive list.
+
+3. Verify that it worked:
+
+> envr list
+
+4. After changing any of your .env files, update the backup with:
+
+> envr sync
+
+5. If you lose a repository, after re-cloning the repo into the same path it was
+at before, restore your backup with:
+
+> envr restore ~/<path to repository>/.env
+
+### Options
+
+```
+  -h, --help   help for envr
+```
+
+### SEE ALSO
+
+* [envr backup](envr_backup.md)	 - Import a .env file into envr
+* [envr check](envr_check.md)	 - check if files in the current directory are backed up
+* [envr deps](envr_deps.md)	 - Check for missing binaries
+* [envr edit-config](envr_edit-config.md)	 - Edit your config with your default editor
+* [envr init](envr_init.md)	 - Set up envr
+* [envr list](envr_list.md)	 - View your tracked files
+* [envr nushell-completion](envr_nushell-completion.md)	 - Generate custom completions for nushell
+* [envr remove](envr_remove.md)	 - Remove a .env file from your database
+* [envr restore](envr_restore.md)	 - Install a .env file from the database into your file system
+* [envr scan](envr_scan.md)	 - Find and select .env files for backup
+* [envr sync](envr_sync.md)	 - Update or restore your env backups
+* [envr version](envr_version.md)	 - Show envr's version
+

docs/cli/envr_backup.md

@@ -0,0 +1,18 @@
+## envr backup
+
+Import a .env file into envr
+
+```
+envr backup <path> [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for backup
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_check.md

@@ -0,0 +1,18 @@
+## envr check
+
+check if files in the current directory are backed up
+
+```
+envr check [path] [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for check
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_deps.md

@@ -0,0 +1,24 @@
+## envr deps
+
+Check for missing binaries
+
+### Synopsis
+
+envr relies on external binaries for certain functionality.
+
+The check command reports on which binaries are available and which are not.
+
+```
+envr deps [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for deps
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_edit-config.md

@@ -0,0 +1,18 @@
+## envr edit-config
+
+Edit your config with your default editor
+
+```
+envr edit-config [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for edit-config
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_init.md

@@ -0,0 +1,28 @@
+## envr init
+
+Set up envr
+
+### Synopsis
+
+The init command generates your initial config and saves it to
+~/.envr/config in JSON format.
+
+During setup, you will be prompted to select one or more ssh keys with which to
+encrypt your databse. **Make 100% sure** that you have **a remote copy** of this
+key somewhere, otherwise your data could be lost forever.
+
+```
+envr init [flags]
+```
+
+### Options
+
+```
+  -f, --force   Overwrite an existing config
+  -h, --help    help for init
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_list.md

@@ -0,0 +1,18 @@
+## envr list
+
+View your tracked files
+
+```
+envr list [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for list
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_nushell-completion.md

@@ -0,0 +1,23 @@
+## envr nushell-completion
+
+Generate custom completions for nushell
+
+### Synopsis
+
+At time of writing, cobra does not natively support nushell,
+so a custom command had to be written
+
+```
+envr nushell-completion [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for nushell-completion
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_remove.md

@@ -0,0 +1,18 @@
+## envr remove
+
+Remove a .env file from your database
+
+```
+envr remove [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for remove
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_restore.md

@@ -0,0 +1,18 @@
+## envr restore
+
+Install a .env file from the database into your file system
+
+```
+envr restore [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for restore
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_scan.md

@@ -0,0 +1,18 @@
+## envr scan
+
+Find and select .env files for backup
+
+```
+envr scan [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for scan
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_sync.md

@@ -0,0 +1,18 @@
+## envr sync
+
+Update or restore your env backups
+
+```
+envr sync [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for sync
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

docs/cli/envr_version.md

@@ -0,0 +1,19 @@
+## envr version
+
+Show envr's version
+
+```
+envr version [flags]
+```
+
+### Options
+
+```
+  -h, --help   help for version
+  -l, --long   Show all version information
+```
+
+### SEE ALSO
+
+* [envr](envr.md)	 - Manage your .env files.
+

features.odin

@@ -0,0 +1,51 @@
+package main
+
+import "base:runtime"
+import "core:mem"
+import "core:os"
+import "core:strings"
+
+Feature :: enum {
+	Git,
+	Fd,
+}
+
+AvailableFeatures :: bit_set[Feature]
+
+check_features :: proc() -> AvailableFeatures {
+	feats: AvailableFeatures
+
+	s: mem.Scratch
+	mem.scratch_init(&s, 4 * mem.DEFAULT_PAGE_SIZE)
+	defer mem.scratch_destroy(&s)
+
+	context.temp_allocator = mem.scratch_allocator(&s)
+
+	path_env := os.get_env("PATH", context.temp_allocator)
+	paths := strings.split(path_env, ":", context.temp_allocator)
+
+	if find_binary(paths, "git") != "" {
+		feats += {.Git}
+	}
+	if find_binary(paths, "fd") != "" {
+		feats += {.Fd}
+	}
+
+	return feats
+}
+
+find_binary :: proc(
+	paths: []string,
+	name: string,
+	allocator: runtime.Allocator = context.temp_allocator,
+) -> string {
+	for p in paths {
+		candidate := strings.join({strings.trim_right(p, "/"), name}, "/", allocator)
+		_, err := os.stat(candidate, allocator)
+		if err == nil {
+			return candidate
+		}
+	}
+	return ""
+}
+

features_test.odin

@@ -0,0 +1,34 @@
+package main
+
+import "core:os"
+import "core:strings"
+import "core:testing"
+
+@(test)
+test_find_binary_exists :: proc(t: ^testing.T) {
+	path := os.get_env("PATH", context.temp_allocator)
+	paths := strings.split(path, ":", context.temp_allocator)
+
+	result := find_binary(paths, "sh")
+	testing.expect(t, result != "", "sh should be found on PATH")
+}
+
+@(test)
+test_find_binary_not_exists :: proc(t: ^testing.T) {
+	old_path := os.get_env("PATH", context.temp_allocator)
+	defer {
+		if old_path != "" {
+			os.set_env("PATH", old_path)
+		}
+	}
+
+	os.set_env("PATH", "/tmp/envr-nope")
+
+	path := os.get_env("PATH", context.temp_allocator)
+	paths := strings.split(path, ":", context.temp_allocator)
+
+
+	result := find_binary(paths, "no_such_binary_xyz")
+	testing.expect(t, result == "", "nonexistent binary should not be found")
+}
+

fixtures/keys/insecure-test-key

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACCbll0MJper9prPwGn2wwikH3hTByL8tlzmhViuvfrryAAAAJCkxfzapMX8
+2gAAAAtzc2gtZWQyNTUxOQAAACCbll0MJper9prPwGn2wwikH3hTByL8tlzmhViuvfrryA
+AAAEDXQExhs89b3fjqJHkhuo9QX4JEjXiEC+vSnCAYc8OxcpuWXQwml6v2ms/AafbDCKQf
+eFMHIvy2XOaFWK69+uvIAAAACnNwZW5jZXJAZncBAgM=
+-----END OPENSSH PRIVATE KEY-----

fixtures/keys/insecure-test-key.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJuWXQwml6v2ms/AafbDCKQfeFMHIvy2XOaFWK69+uvI spencer@fw

fixtures/keys/test_ed25519

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACC4CdhiPHmU44cyy9UZV1ISnDq9RbYl1m1qTYOXaSNougAAAIg+8A82PvAP
+NgAAAAtzc2gtZWQyNTUxOQAAACC4CdhiPHmU44cyy9UZV1ISnDq9RbYl1m1qTYOXaSNoug
+AAAEAalxEoCavixCImtND1I0YHZZjhOrBLxk//t9v0sjYNVLgJ2GI8eZTjhzLL1RlXUhKc
+Or1FtiXWbWpNg5dpI2i6AAAABHRlc3QB
+-----END OPENSSH PRIVATE KEY-----

fixtures/keys/test_ed25519.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAILgJ2GI8eZTjhzLL1RlXUhKcOr1FtiXWbWpNg5dpI2i6 test

fixtures/keys/test_ed25519_encrypted

@@ -0,0 +1,8 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAACmFlczI1Ni1jdHIAAAAGYmNyeXB0AAAAGAAAABD342Kol/
+iE3kW3alqJTPVpAAAAGAAAAAEAAAAzAAAAC3NzaC1lZDI1NTE5AAAAIF29NuS3O0JUKCj4
+j/NmmJJyJk6n/MwI37WtVeWAC5c/AAAAoPFp0zRQufp8S+f68atSqFT1FYMUvGqL2cmmtJ
+r+kXEeEvSGdi3xAxCSLuoe0tMeUYP8aUP1M5L9VzTpFoi8jBIfcPl/ZRX8F/+J4dhp5jno
+3nQuo1AN0D60r+UmmX+Z0IzIrD2jIpZ/Y7P2kXT8OErIhtC4ZJs3nIIOKFY7ZzlM1IqbYH
+dSSlpUnsAoMPjMb0eD0Q6s6JaldfiNshckauU=
+-----END OPENSSH PRIVATE KEY-----

fixtures/keys/test_ed25519_encrypted.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIF29NuS3O0JUKCj4j/NmmJJyJk6n/MwI37WtVeWAC5c/ encrypted test key

fixtures/keys/test_ed25519_second

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACCZhSOlxHj1zxd+P7adxHOjo3tqqe68AVQ1itJ96nJ95wAAAIh6gz6PeoM+
+jwAAAAtzc2gtZWQyNTUxOQAAACCZhSOlxHj1zxd+P7adxHOjo3tqqe68AVQ1itJ96nJ95w
+AAAEAEsVzs6egkWMZolD/pZCX5ZcZVXfd5wZ6Ja12f+PxAQJmFI6XEePXPF34/tp3Ec6Oj
+e2qp7rwBVDWK0n3qcn3nAAAABXRlc3Qy
+-----END OPENSSH PRIVATE KEY-----

fixtures/keys/test_ed25519_second.pub

@@ -0,0 +1 @@
+ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJmFI6XEePXPF34/tp3Ec6Oje2qp7rwBVDWK0n3qcn3n test2

fixtures/keys/test_rsa

@@ -0,0 +1,27 @@
+-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----

fixtures/keys/test_rsa.pub

@@ -0,0 +1 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCPCr8hJ4r9OYqJXU0AEir60XB68CulNFPJn14LknIa8PMMHTdu5WXptd3r5zC/6HQBlrsFk3rRrK/zMBSbIalLEU3aAwWIn/SIVilMeItkPhVQfyYI+WUh6E52t6lyGaWHXgF5KEmOUbPAECWCIQ43lXraAJZYuaQjNwCBR3dHY1RB9qOXvjADQkGRo14XBSmdQBHI9R4xVfxlVS9ukT9Y4VNlh8VkOS6XppKQDMR7Jmr2zionaZa3lpy5dwxxSXpi24AYxeKL65XWcnJCk2AdF0RnYKHXOa2JOuqO610FQ5/JBkncuf2H+c8kN6tQdlujKG7rnh0ttpzQ/elhyJbz test-rsa

flake.lock

@@ -5,11 +5,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1760948891,
-        "narHash": "sha256-TmWcdiUUaWk8J4lpjzu4gCGxWY6/Ok7mOK4fIFfBuU4=",
+        "lastModified": 1778716662,
+        "narHash": "sha256-m1Yf0wZ8j1OHjTc2UwHwyQRSnNeSgLJOd7q5Y45hzi4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "864599284fc7c0ba6357ed89ed5e2cd5040f0c04",
+        "rev": "f7c1a2d347e4c52d5fb8d10cb4d94b5884e546fb",
         "type": "github"
       },
       "original": {
@@ -20,25 +20,27 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1761594641,
-        "narHash": "sha256-sImk6SJQASDLQo8l+0zWWaBgg7TueLS6lTvdH5pBZpo=",
+        "lastModified": 1767313136,
+        "narHash": "sha256-16KkgfdYqjaeRGBaYsNrhPRRENs0qzkQVUooNHtoy2w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1666250dbe4141e4ca8aaf89b40a3a51c2e36144",
+        "rev": "ac62194c3917d5f474c1a844b6fd6da2db95077d",
         "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nixpkgs-lib": {
       "locked": {
-        "lastModified": 1754788789,
-        "narHash": "sha256-x2rJ+Ovzq0sCMpgfgGaaqgBSwY+LST+WbZ6TytnT9Rk=",
+        "lastModified": 1777168982,
+        "narHash": "sha256-GOkGPcboWE9BmGCRMLX3worL4EMnsnG8MyKmXNeYuhQ=",
         "owner": "nix-community",
         "repo": "nixpkgs.lib",
-        "rev": "a73b9c743612e4244d865a2fdee11865283c04e6",
+        "rev": "f5901329dade4a6ea039af1433fb087bd9c1fe14",
         "type": "github"
       },
       "original": {
@@ -49,11 +51,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1761594641,
-        "narHash": "sha256-sImk6SJQASDLQo8l+0zWWaBgg7TueLS6lTvdH5pBZpo=",
+        "lastModified": 1781173989,
+        "narHash": "sha256-fnzKKPvS+oieI/pTzotA5tkoM47EB1NpaBcgk4R97hE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1666250dbe4141e4ca8aaf89b40a3a51c2e36144",
+        "rev": "8c91a71d13451abc40eb9dae8910f972f979852f",
         "type": "github"
       },
       "original": {
@@ -63,27 +65,11 @@
         "type": "github"
       }
     },
-    "process-compose-flake": {
-      "locked": {
-        "lastModified": 1761063998,
-        "narHash": "sha256-l14CiQZM2ZpWp6leugJ5/GKU1aydT/xrvyKRMgYc0ak=",
-        "owner": "Platonic-Systems",
-        "repo": "process-compose-flake",
-        "rev": "d1839830cd4a814830a27b3cb58437306747bbd3",
-        "type": "github"
-      },
-      "original": {
-        "owner": "Platonic-Systems",
-        "repo": "process-compose-flake",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "flake-parts": "flake-parts",
         "nixpkgs": "nixpkgs",
         "nixpkgs-unstable": "nixpkgs-unstable",
-        "process-compose-flake": "process-compose-flake",
         "treefmt-nix": "treefmt-nix"
       }
     },
@@ -94,11 +80,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1761311587,
-        "narHash": "sha256-Msq86cR5SjozQGCnC6H8C+0cD4rnx91BPltZ9KK613Y=",
+        "lastModified": 1780220602,
+        "narHash": "sha256-eynAfOmbmxJnkp7YewvCEbShNnnYJ9gLLqkzsYtBPeM=",
         "owner": "numtide",
         "repo": "treefmt-nix",
-        "rev": "2eddae033e4e74bf581c2d1dfa101f9033dbd2dc",
+        "rev": "db947814a175b7ca6ded66e21383d938df01c227",
         "type": "github"
       },
       "original": {

flake.nix

@@ -1,44 +1,57 @@
 {
-  description = "A dev environment";
+  description = "Manage your .env files.";
 
   inputs = {
-    # nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
     nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
 
     flake-parts.url = "github:hercules-ci/flake-parts";
-    process-compose-flake.url = "github:Platonic-Systems/process-compose-flake";
     treefmt-nix.url = "github:numtide/treefmt-nix";
     treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
   };
 
   outputs =
-    inputs@{ self
-    , flake-parts
-    , nixpkgs
-    , nixpkgs-unstable
-    , process-compose-flake
-    , treefmt-nix
+    inputs@{
+      flake-parts,
+      nixpkgs,
+      nixpkgs-unstable,
+      self,
+      treefmt-nix,
     }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       imports = [
         inputs.treefmt-nix.flakeModule
-        # inputs.process-compose-flake.flakeModule
       ];
-      systems = [ "x86_64-linux" ];
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+
+        "aarch64-darwin"
+      ];
 
       perSystem =
-        { pkgs, system, inputs', ... }: {
+        {
+          pkgs,
+          system,
+          inputs',
+          ...
+        }:
+      let
+        mysqlite = pkgs.sqlite.overrideAttrs (old: {
+                configureFlags = (old.configureFlags or [ ]) ++ [ "--enable-deserialize" ];
+              });
+      in
+        {
           _module.args.pkgs = import nixpkgs {
             inherit system;
             config.allowUnfree = true;
 
             overlays = [
-              (final: prev: { unstable = inputs'.nixpkgs-unstable.legacyPackages; })
+              (_final: _prev: { unstable = inputs'.nixpkgs-unstable.legacyPackages; })
             ];
           };
 
           treefmt = {
-            # Used to find the project root
             projectRootFile = "flake.nix";
             settings.global.excludes = [
               ".direnv/**"
@@ -48,37 +61,57 @@
               ".env.local"
             ];
 
-
-            # Format nix files
             programs.nixpkgs-fmt.enable = true;
-            programs.deadnix.enable = true;
-
-            # Format js, json, and yaml files
-            programs.prettier.enable = true;
-            settings.formatter.prettier =
-              {
-                excludes = [
-                  "public/**"
-                  "resources/js/modernizr.js"
-                  "storage/app/caniuse.json"
-                  "*.md"
-                ];
-              };
           };
 
-          devShells.default = pkgs.mkShell
-            {
-              buildInputs = with pkgs; [
-                age
-                nushell
-                sqlite
+          packages.default = pkgs.stdenv.mkDerivation rec {
+            pname = "envr";
+            version = "0.2.0";
+            src = ./.;
 
-                # IDE
-                unstable.helix
-                typescript-language-server
-                vscode-langservers-extracted
-              ];
-            };
+            nativeBuildInputs = [
+              pkgs.unstable.odin
+              pkgs.pkg-config
+            ];
+
+            buildInputs = [
+              pkgs.libsodium
+              mysqlite
+            ];
+
+            buildPhase = ''
+              runHook preBuild
+              echo '${version}' > version.txt
+              odin build . -o:speed -out:${pname}
+              runHook postBuild
+            '';
+
+            installPhase = ''
+              runHook preInstall
+              install -Dm755 ${pname} $out/bin/${pname}
+              runHook postInstall
+            '';
+          };
+
+          devShells.default = pkgs.mkShell {
+            buildInputs = with pkgs; [
+              fd
+              nushell
+
+              libsodium
+              mysqlite
+              unstable.odin
+              unstable.ols
+
+              # Build tools
+              zip
+
+              # IDE
+              unstable.helix
+              typescript-language-server
+              vscode-langservers-extracted
+            ];
+          };
         };
     };
 }

main.odin

@@ -0,0 +1,47 @@
+package main
+
+import "core:bufio"
+import "core:fmt"
+import "core:os"
+
+main :: proc() {
+	defer free_all(context.temp_allocator)
+
+	cmd, ok := parse_args(os.args, os.to_writer(os.stdout), os.to_writer(os.stderr))
+	defer bufio.writer_flush(cmd.out_buf)
+	if !ok {
+		return
+	}
+
+	switch cmd.name {
+	case "init":
+		cmd_init(&cmd)
+	case "version":
+		cmd_version(&cmd)
+	case "deps":
+		cmd_deps(&cmd)
+	case "list":
+		cmd_list(&cmd)
+	case "backup", "add":
+		cmd_backup(&cmd)
+	case "remove":
+		cmd_remove(&cmd)
+	case "restore":
+		cmd_restore(&cmd)
+	case "edit-config":
+		cmd_edit_config(&cmd)
+	case "check":
+		cmd_check(&cmd)
+	case "scan":
+		cmd_scan(&cmd)
+	case "sync":
+		cmd_sync(&cmd)
+	case "nushell-completion":
+		cmd_nushell_completion(&cmd)
+	case:
+		fmt.wprintf(cmd.err, "Unknown command: %s\n", cmd.name)
+		write_usage(cmd.out)
+		os.exit(1)
+	}
+}
+

mod.nu

@@ -1,201 +1,71 @@
-#!/usr/bin/env nu
+# envr command extern definitions for Nushell
+# A tool for managing environment files and backups
 
-use std assert;
-
-# Manage your .env files with ease
-export def envr [] {
-  help envr
-}
-
-# Import a .env file into envr
-export def "envr backup" [
-  file: path
-] {
-  cd (dirname $file);
-
-  let contents = (open $file --raw)
-
-  open db
-
-  let row = {
-    path: $file
-    dir: (pwd)
-    remotes: (git remote | lines | each { git remote get-url $in } | to json)
-    sha256: ($contents | hash sha256)
-    contents: $contents
-  };
-
-  try {
-    $row | stor insert -t envr_env_files
-  } catch {
-    $row | stor update -t envr_env_files -w $'path == "($row.path)"'
-  }
-
-  close db
-
-  $"file '($file)' backed up!"
-}
-
-const db_path = '~/.envr/data.age'
-
-# Create or load the database
-def "open db" [] {
-  if (not ($db_path | path exists)) {
-    create-db
-  } else {
-    # Open the db
-    let dec = mktemp -p ~/.envr;
-    let priv_key = ((envr config show).priv_key | path expand);
-    age -d -i $priv_key ($db_path | path expand) | save -f $dec
-    stor import -f $dec
-    rm $dec
-  }
-
-  stor open
-}
-
-def "create-db" []: nothing -> any {
-  let dec = mktemp -p ~/.envr;
-
-  sqlite3 $dec 'create table envr_env_files (
-      path text primary key not null
-    , dir text not null
-    , remotes text -- JSON
-    , sha256 text not null
-    , contents text not null
-  );'
-
-  let pub_key = ((envr config show).pub_key | path expand);
-  age -R $pub_key $dec | save -f $db_path
-
-  stor import -f $dec
-  rm $dec;
-}
-
-def "close db" [] {
-  let dec = mktemp -p ~/.envr;
-
-  stor export --file-name $dec;
-
-  # Encrypt the file
-  let pub_key = ((envr config show).pub_key | path expand);
-  age -R $pub_key $dec | save -f $db_path
-
-  rm $dec
-}
-
-# Restore a .env file from backup.
-export def "envr restore" [
-  path?: path # The path of the file to restore. Will be prompted if left blank.
-]: nothing -> string {
-  let files = (files)
-  let $path = if ($path | is-empty) {
-    (
-      $files
-      | select path dir remotes
-      | input list -f "Please select a file to restore"
-      | get path
-    )
-  } else {
-    $path
-  }
-
-  let file = ($files | where path == $path | first);
-  assert ($file | is-not-empty) "File must be found"
-
-  let response = if (($path | path type) == 'file') {
-    if (open --raw $file.path | hash sha256 | $in == $file.sha256) {
-      # File matches
-      $'(ansi yellow)file is already up to date.(ansi reset)';
-    } else {
-      # File exists, but doesn't match
-      let continue = (
-        [No Yes]
-        | input list $"File '($path)' already exists, are you sure you want to overwrite it?"
-        | $in == 'Yes'
-      );
-
-      if ($continue) {
-        null
-      } else {
-        $'(ansi yellow)No action was taken(ansi reset)'
-      }
-    }
-  };
-
-  if ($response | is-empty) {
-    # File should be restored
-    $file.contents | save -f $path
-    return $'(ansi green)($path) restored!(ansi reset)'
-  } else {
-    return $response
-  }
-}
-
-# Supported config formats
-const available_formats = [
-  json
-  toml
-  yaml
-  ini
-  xml
-  nuon
-]
-
-# Create your initial config
-export def "envr config init" [
-  format?: string
-  #identity?: path
-] {
-  mkdir ~/.envr
-
-  let format = if ($format | is-empty) {
-    $available_formats | input list 'Please select the desired format for your config file'
-  }
-
-  let identity = '~/.ssh/id_ed25519';
-  
-  # The path to the config file.
-  let source = $'~/.envr/config.($format)'
-
-  {
-    source: $source
-    priv_key: $identity
-    pub_key: $'($identity).pub'
-  } | tee {
-    save $source
-  }
-}
-
-# View your tracked files
-export def "envr list" [] {
-  (files | reject contents)
-}
-
-# List all the files in the database
-def files [] {
+export def tracked-paths [] {
   (
-    open db
-    | query db 'select * from envr_env_files'
-    | update remotes { from json }
+    ^envr list
+    | from json
+    | each {
+      [$in.directory $in.path] | path join
+    }
   )
 }
 
-# Update your env backups
-export def "envr sync" [] {
-  'TODO:' 
+export def untracked-paths [] {
+  (
+    ^envr scan
+    | from json
+  )
 }
 
-# Edit your config
-export def "envr config edit" [] {
-  ^$env.EDITOR (config-file)
-}
+export extern envr [
+  ...args: any
+  --help(-h)              # Show help information
+]
 
-def "config-file" []: [nothing -> path nothing -> nothing] {
-  ls ~/.envr/config.* | get 0.name -o
-}
+export extern "envr backup" [
+  --help(-h) # Show help for backup command
+  path: path@untracked-paths # Path to .env file to backup
+]
 
-# show your current config
-export def "envr config show" []: nothing -> record<source: path, priv_key: path, pub_key: path> {
-  open (config-file)
-}
+export extern "envr check" [
+  --help(-h)              # Show help for check command
+]
+
+export extern "envr edit-config" [
+  --help(-h)              # Show help for edit-config command
+]
+
+export extern "envr help" [
+  command?: string        # Show help for specific command
+]
+
+export extern "envr init" [
+  --help(-h)              # Show help for init command
+]
+
+export extern "envr list" [
+  --help(-h)              # Show help for list command
+]
+
+export extern "envr remove" [
+  --help(-h)              # Show help for remove command
+  path: path@tracked-paths
+]
+
+export extern "envr restore" [
+  --help(-h)              # Show help for restore command
+  path: path@tracked-paths
+]
+
+export extern "envr scan" [
+  --help(-h)              # Show help for scan command
+]
+
+export extern "envr sync" [
+  --help(-h)              # Show help for sync command
+]
+
+export extern "envr nushell-completion" [
+  --help(-h)              # Show help for nushell-completion command
+]

prompt.odin

@@ -0,0 +1,201 @@
+package main
+
+import "core:fmt"
+import "core:sys/posix"
+
+MultiSelect_Result :: enum {
+	Confirm,
+	Cancel,
+}
+
+Key :: enum {
+	Up,
+	Down,
+	Space,
+	Enter,
+	Escape,
+	Unknown,
+}
+
+Raw_State :: struct {
+	original: posix.termios,
+	fd:       posix.FD,
+}
+
+MAX_VISIBLE :: 7
+
+// Caller is responsible for deleting the responses.
+multi_select :: proc(
+	prompt: string,
+	options: []string,
+) -> (
+	selected: [dynamic]bool,
+	result: MultiSelect_Result,
+) {
+	if len(options) == 0 {
+		return
+	}
+
+	selected = make([dynamic]bool, 0, len(options))
+	cursor: int = 0
+	scroll_offset: int = 0
+
+	fmt.printf("\x1b[?25l")
+	visible := render_options(prompt, options, selected[:], cursor, scroll_offset)
+
+	raw, ok := enable_raw_mode(posix.STDIN_FILENO)
+	if !ok {
+		fmt.printf("\x1b[?25h")
+		return
+	}
+	defer disable_raw_mode(&raw)
+
+	for {
+		key := read_key()
+
+		switch key {
+		case .Up:
+			if cursor > 0 {
+				cursor -= 1
+			}
+		case .Down:
+			if cursor < len(options) - 1 {
+				cursor += 1
+			}
+		case .Space:
+			selected[cursor] = !selected[cursor]
+		case .Enter:
+			fmt.printf("\x1b[%dA\x1b[J\x1b[?25h", visible + 1)
+			result = .Confirm
+			return
+		case .Escape:
+			fmt.printf("\x1b[%dA\x1b[J\x1b[?25h", visible + 1)
+			result = .Cancel
+			return
+		case .Unknown:
+		}
+
+		scroll_offset = max(0, min(cursor - MAX_VISIBLE / 2, len(options) - MAX_VISIBLE))
+		fmt.printf("\x1b[%dA\x1b[0J", visible + 1)
+		visible = render_options(prompt, options, selected[:], cursor, scroll_offset)
+	}
+}
+
+render_options :: proc(
+	prompt: string,
+	options: []string,
+	selected: []bool,
+	cursor: int,
+	scroll_offset: int,
+) -> int {
+	fmt.printf("\x1b[1;36m%s\x1b[0m (↑/↓ move, space select, enter confirm)\r\n", prompt)
+
+	end := scroll_offset + MAX_VISIBLE
+	if end > len(options) {
+		end = len(options)
+	}
+
+	for i in scroll_offset ..< end {
+		checkbox := " "
+		if selected[i] {
+			checkbox = "x"
+		}
+		if i == cursor {
+			fmt.printf("\x1b[1;32m> \x1b[0m[\x1b[32m%s\x1b[0m] %s\r\n", checkbox, options[i])
+		} else {
+			fmt.printf("  [\x1b[2m%s\x1b[0m] %s\r\n", checkbox, options[i])
+		}
+	}
+
+	return end - scroll_offset
+}
+
+enable_raw_mode :: proc(fd: posix.FD) -> (Raw_State, bool) {
+	state: Raw_State
+	state.fd = fd
+
+	if posix.tcgetattr(fd, &state.original) != .OK {
+		return state, false
+	}
+
+	attr: posix.termios = state.original
+	attr.c_lflag -= {.ICANON, .ECHO, .ISIG, .IEXTEN}
+	attr.c_iflag -= {.IXON, .ICRNL, .BRKINT, .INPCK, .ISTRIP}
+	attr.c_oflag -= {.OPOST}
+	attr.c_cflag += {.CS8}
+	attr.c_cc[.VMIN] = 1
+	attr.c_cc[.VTIME] = 0
+
+	if posix.tcsetattr(fd, .TCSAFLUSH, &attr) != .OK {
+		return state, false
+	}
+
+	return state, true
+}
+
+disable_raw_mode :: proc(state: ^Raw_State) {
+	posix.tcsetattr(state.fd, .TCSAFLUSH, &state.original)
+}
+
+read_key :: proc() -> Key {
+	buf: [3]u8
+
+	n := posix.read(posix.STDIN_FILENO, &buf[0], 1)
+	if n <= 0 {
+		return .Unknown
+	}
+
+	switch buf[0] {
+	case ' ':
+		return .Space
+	case '\n', '\r':
+		return .Enter
+	case 0x03:
+		return .Escape
+	case 0x1b:
+		tv: posix.timeval
+		tv.tv_sec = 0
+		tv.tv_usec = posix.suseconds_t(100000)
+
+		set: posix.fd_set
+		posix.FD_ZERO(&set)
+		posix.FD_SET(posix.STDIN_FILENO, &set)
+
+		ready := posix.select(1, &set, nil, nil, &tv)
+		if ready <= 0 {
+			return .Escape
+		}
+
+		n2 := posix.read(posix.STDIN_FILENO, &buf[1], 1)
+		if n2 <= 0 || buf[1] != '[' {
+			return .Escape
+		}
+
+		posix.FD_ZERO(&set)
+		posix.FD_SET(posix.STDIN_FILENO, &set)
+		tv.tv_sec = 0
+		tv.tv_usec = posix.suseconds_t(100000)
+
+		ready = posix.select(1, &set, nil, nil, &tv)
+		if ready <= 0 {
+			return .Escape
+		}
+
+		n3 := posix.read(posix.STDIN_FILENO, &buf[2], 1)
+		if n3 <= 0 {
+			return .Escape
+		}
+
+		switch buf[2] {
+		case 'A':
+			return .Up
+		case 'B':
+			return .Down
+		case:
+			return .Escape
+		}
+	case:
+		return .Unknown
+	}
+}
+

scan.odin

@@ -0,0 +1,148 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:strings"
+import "core:sync"
+import "core:terminal"
+
+fd_counter: sync.Atomic_Mutex
+fd_seq: int
+
+// Caller is responsible for freeing paths
+scan_path :: proc(search_path: string, cfg: Config) -> (paths: [dynamic]string, ok: bool) {
+	if terminal.is_terminal(os.stdout) {
+		fmt.printf("Searching for all files in \"%s\"...\n", search_path)
+	}
+	all_files, all_ok := run_fd(build_fd_args(search_path, cfg, true))
+	if !all_ok {
+		return
+	}
+
+	if terminal.is_terminal(os.stdout) {
+		fmt.printf("Search for unignored fies in \"%s\"...\n", search_path)
+	}
+	unignored_files, unignored_ok := run_fd(build_fd_args(search_path, cfg, false))
+	if !unignored_ok {
+		return
+	}
+
+	unignored_set := make(map[string]bool, len(unignored_files), context.temp_allocator)
+	for file in unignored_files {
+		unignored_set[file] = true
+	}
+
+	for file in all_files {
+		if !(file in unignored_set) {
+			append(&paths, file)
+		}
+	}
+
+	ok = true
+	return
+}
+
+@(private = "file")
+build_fd_args :: proc(search_path: string, cfg: Config, include_ignored: bool) -> []string {
+	args_len := 3 + 2 * len(cfg.ScanConfig.Exclude) + 2
+	args := make([dynamic]string, 0, args_len, context.temp_allocator)
+	append(&args, "fd")
+	append(&args, "-a")
+	append(&args, cfg.ScanConfig.Matcher)
+
+	for exclude in cfg.ScanConfig.Exclude {
+		append(&args, "-E")
+		append(&args, exclude)
+	}
+
+	if include_ignored {
+		append(&args, "-HI")
+	} else {
+		append(&args, "-H")
+	}
+
+	append(&args, search_path)
+	return args[:]
+}
+
+run_fd :: proc(args: []string) -> (lines: []string, ok: bool) {
+	tmp_path := next_fd_tmp_path()
+	tmp_file, tmp_err := os.open(tmp_path, os.O_CREATE | os.O_WRONLY | os.O_TRUNC)
+	if tmp_err != nil {
+		// TODO: Log a message here
+		return
+	}
+
+	desc := os.Process_Desc {
+		command = args,
+		stdout  = tmp_file,
+		stderr  = nil,
+	}
+
+	p, start_err := os.process_start(desc)
+	os.close(tmp_file)
+	if start_err != nil {
+		os.remove(tmp_path)
+		return
+	}
+
+	state, wait_err := os.process_wait(p)
+	if wait_err != nil || state.exit_code != 0 {
+		os.remove(tmp_path)
+		return
+	}
+
+	data, read_err := os.read_entire_file_from_path(tmp_path, context.temp_allocator)
+	os.remove(tmp_path)
+	if read_err != nil {
+		return
+	}
+
+	output := string(data)
+	output = strings.trim_space(output)
+	if len(output) == 0 {
+		ok = true
+		return
+	}
+
+	raw_lines := strings.split(output, "\n", context.temp_allocator)
+	result := make([dynamic]string, 0, len(raw_lines), context.temp_allocator)
+	for line in raw_lines {
+		trimmed := strings.trim_space(line)
+		if len(trimmed) > 0 {
+			append(&result, trimmed)
+		}
+	}
+
+	return result[:], true
+}
+
+@(private = "file")
+next_fd_tmp_path :: proc() -> string {
+	sync.atomic_mutex_lock(&fd_counter)
+	n := fd_seq
+	fd_seq += 1
+	sync.atomic_mutex_unlock(&fd_counter)
+	return fmt.tprintf("/tmp/envr-fd-%d-%d", os.get_pid(), n)
+}
+
+cant_scan :: proc(feats: AvailableFeatures) -> bool {
+	return Feature.Fd not_in feats
+}
+
+find_unbacked :: proc(local_files: []string, db_files: []EnvFile) -> []string {
+	// Lives until the end of the function
+	backed_set := make(map[string]bool, len(db_files), context.temp_allocator)
+	for file in db_files {
+		backed_set[file.Path] = true
+	}
+
+	unbacked := make([dynamic]string, 0, len(db_files) / 2, context.temp_allocator)
+	for file in local_files {
+		if !(file in backed_set) {
+			append(&unbacked, file)
+		}
+	}
+	return unbacked[:]
+}
+

scan_test.odin

@@ -0,0 +1,96 @@
+package main
+
+import "core:fmt"
+import "core:os"
+import "core:path/filepath"
+import "core:strings"
+import "core:testing"
+
+@(test)
+test_scan_path_finds_gitignored_env_files :: proc(t: ^testing.T) {
+	feats := check_features()
+	testing.expect(t, cant_scan(feats) == false)
+
+	base := fmt.tprintf("/tmp/envr-scan-test-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	git_init := os.Process_Desc {
+		command     = []string{"git", "-c", "advice.defaultBranchName=false", "init", "-q"},
+		working_dir = base,
+		stdout      = os.stderr,
+		stderr      = os.stderr,
+	}
+	p, err := os.process_start(git_init)
+	if err != nil {
+		return
+	}
+	_, wait_err := os.process_wait(p)
+	if wait_err != nil {
+		return
+	}
+
+	gitignore_path := fmt.tprintf("%s/.gitignore", base)
+	_ = os.write_entire_file(gitignore_path, ".env*\n")
+
+	_ = os.write_entire_file(fmt.tprintf("%s/.env", base), "SECRET=1")
+	_ = os.write_entire_file(fmt.tprintf("%s/.env.testing", base), "TEST=1")
+	_ = os.write_entire_file(fmt.tprintf("%s/config.yaml", base), "key: value")
+
+	cfg := Config {
+		ScanConfig = ScanConfig{Matcher = "\\.env"},
+	}
+
+	results, ok := scan_path(base, cfg)
+	defer delete(results)
+	testing.expect(t, ok, "scan_path should succeed")
+
+	found_env := false
+	found_testing := false
+	found_config := false
+
+	for path in results {
+		_, filename := filepath.split(path)
+		if filename == ".env" {
+			found_env = true
+		}
+		if filename == ".env.testing" {
+			found_testing = true
+		}
+		if filename == "config.yaml" {
+			found_config = true
+		}
+	}
+
+	testing.expect(t, found_env, "should find .env (gitignored)")
+	testing.expect(t, found_testing, "should find .env.testing (gitignored)")
+	testing.expect(t, !found_config, "should NOT find config.yaml (not gitignored)")
+}
+
+@(test)
+test_scan_path_empty_dir :: proc(t: ^testing.T) {
+	feats := check_features()
+	testing.expect(t, cant_scan(feats) == false)
+
+	base := fmt.tprintf("/tmp/envr-scan-empty-%d", os.get_pid())
+	os.mkdir_all(base)
+	defer os.remove_all(base)
+
+	cfg := Config {
+		ScanConfig = ScanConfig{Matcher = "\\.env"},
+	}
+
+	results, ok := scan_path(base, cfg)
+	defer delete(results)
+	testing.expect(t, ok, "scan_path should succeed")
+	testing.expect(t, len(results) == 0, fmt.tprintf("expected 0 results, got %d", len(results)))
+}
+
+@(test)
+test_scan_meets_expectations :: proc(t: ^testing.T) {
+	testing.expect(t, cant_scan({}), "no features should mean can't scan")
+	testing.expect(t, cant_scan({.Git}), "Git alone should mean can't scan")
+	testing.expect(t, !cant_scan({.Fd}), "having Fd should mean can scan")
+	testing.expect(t, !cant_scan({.Fd, .Git}), "both Fd and Git should mean can scan")
+}
+

sodium.odin

@@ -0,0 +1,31 @@
+package main
+
+import "core:c"
+
+foreign import libsodium "system:sodium"
+
+CRYPTO_BOX_PUBLICKEY_BYTES :: 32
+CRYPTO_BOX_SECRETKEY_BYTES :: 32
+CRYPTO_BOX_NONCE_BYTES :: 24
+CRYPTO_BOX_MAC_BYTES :: 16
+
+CRYPTO_SECRETBOX_KEY_BYTES :: 32
+CRYPTO_SECRETBOX_NONCE_BYTES :: 24
+CRYPTO_SECRETBOX_MAC_BYTES :: 16
+
+CRYPTO_SIGN_PUBLICKEY_BYTES :: 32
+CRYPTO_SIGN_SECRETKEY_BYTES :: 64
+
+@(default_calling_convention = "c")
+foreign libsodium {
+	sodium_init :: proc() -> c.int ---
+	// crypto_box_keypair :: proc(pk: [^]u8, sk: [^]u8) -> c.int ---
+	crypto_box_easy :: proc(ciphertext: [^]u8, plaintext: [^]u8, mlen: c.ulong, nonce: [^]u8, pk: [^]u8, sk: [^]u8) -> c.int ---
+	crypto_box_open_easy :: proc(plaintext: [^]u8, ciphertext: [^]u8, clen: c.ulong, nonce: [^]u8, pk: [^]u8, sk: [^]u8) -> c.int ---
+	crypto_secretbox_easy :: proc(ciphertext: [^]u8, plaintext: [^]u8, mlen: c.ulong, nonce: [^]u8, key: [^]u8) -> c.int ---
+	crypto_secretbox_open_easy :: proc(plaintext: [^]u8, ciphertext: [^]u8, clen: c.ulong, nonce: [^]u8, key: [^]u8) -> c.int ---
+	crypto_sign_ed25519_pk_to_curve25519 :: proc(curve25519_pk: [^]u8, ed25519_pk: [^]u8) -> c.int ---
+	crypto_sign_ed25519_sk_to_curve25519 :: proc(curve25519_sk: [^]u8, ed25519_sk: [^]u8) -> c.int ---
+	randombytes_buf :: proc(buf: [^]u8, size: c.ulong) ---
+}
+

sqlite/sqlite.odin

@@ -0,0 +1,45 @@
+package sqlite
+
+import "core:c"
+
+foreign import lib "system:sqlite3"
+
+OK :: 0
+ROW :: 100
+DONE :: 101
+
+DESERIALIZE_FREEONCLOSE :: 1
+DESERIALIZE_RESIZEABLE :: 2
+
+foreign lib {
+    @(link_name="sqlite3_open")
+    db_open          :: proc(filename: cstring, ppDb: ^^rawptr) -> c.int ---
+    @(link_name="sqlite3_close")
+    db_close         :: proc(db: ^rawptr) -> c.int ---
+    @(link_name="sqlite3_errmsg")
+    db_errmsg        :: proc(db: ^rawptr) -> cstring ---
+    @(link_name="sqlite3_exec")
+    db_exec          :: proc(db: ^rawptr, sql: cstring, callback: rawptr, callback_arg: rawptr, errmsg: ^cstring) -> c.int ---
+    @(link_name="sqlite3_prepare_v2")
+    prepare_v2       :: proc(db: ^rawptr, sql: cstring, nByte: c.int, ppStmt: ^^rawptr, pzTail: ^cstring) -> c.int ---
+    @(link_name="sqlite3_step")
+    step             :: proc(stmt: ^rawptr) -> c.int ---
+    @(link_name="sqlite3_finalize")
+    finalize         :: proc(stmt: ^rawptr) -> c.int ---
+    @(link_name="sqlite3_column_text")
+    column_text      :: proc(stmt: ^rawptr, iCol: c.int) -> cstring ---
+    @(link_name="sqlite3_column_bytes")
+    column_bytes     :: proc(stmt: ^rawptr, iCol: c.int) -> c.int ---
+    @(link_name="sqlite3_bind_text")
+    bind_text        :: proc(stmt: ^rawptr, idx: c.int, val: cstring, n: c.int, destructor: rawptr) -> c.int ---
+    @(link_name="sqlite3_changes")
+    changes          :: proc(db: ^rawptr) -> c.int ---
+    @(link_name="sqlite3_serialize")
+    serialize        :: proc(db: ^rawptr, zSchema: cstring, piSize: ^i64, mFlags: u32) -> [^]u8 ---
+    @(link_name="sqlite3_deserialize")
+    deserialize      :: proc(db: ^rawptr, zSchema: cstring, pData: [^]u8, szDb: i64, szBuf: i64, mFlags: u32) -> c.int ---
+    @(link_name="sqlite3_malloc64")
+    malloc64         :: proc(n: i64) -> [^]u8 ---
+    @(link_name="sqlite3_free")
+    free             :: proc(p: rawptr) ---
+}

ssh.odin

@@ -0,0 +1,255 @@
+package main
+
+import "core:encoding/base64"
+import "core:fmt"
+import "core:os"
+import "core:strings"
+
+SSH_ED25519 :: "ssh-ed25519"
+
+Ed25519Keypair :: struct {
+	Public:  [32]u8,
+	Private: [32]u8,
+}
+
+read_wire_string :: proc(data: []u8, offset: ^int) -> (s: string, ok: bool) {
+	if offset^ + 4 > len(data) {
+		return
+	}
+	length := u32(data[offset^]) << 24 | u32(data[offset^ + 1]) << 16 |
+		u32(data[offset^ + 2]) << 8 | u32(data[offset^ + 3])
+	offset^ += 4
+
+	if offset^ + int(length) > len(data) {
+		return
+	}
+
+	s = string(data[offset^ : offset^ + int(length)])
+	offset^ += int(length)
+	ok = true
+	return
+}
+
+parse_ssh_public_key :: proc(pub_path: string) -> (pub: [32]u8, ok: bool) {
+	data, err := os.read_entire_file_from_path(pub_path, context.temp_allocator)
+	if err != nil {
+		return
+	}
+
+	text := strings.trim_right(string(data), "\n")
+	parts := strings.split(text, " ", context.temp_allocator)
+	if len(parts) < 2 {
+		return
+	}
+	if parts[0] != SSH_ED25519 {
+		return
+	}
+
+	decoded, decode_err := base64.decode(parts[1], allocator = context.temp_allocator)
+	if decode_err != nil || len(decoded) < 51 {
+		return
+	}
+
+	offset := 0
+	key_type, type_ok := read_wire_string(decoded, &offset)
+	if !type_ok || key_type != SSH_ED25519 {
+		return
+	}
+
+	pk_data, pk_ok := read_wire_string(decoded, &offset)
+	if !pk_ok || len(pk_data) != 32 {
+		return
+	}
+
+	for i in 0 ..< 32 {
+		pub[i] = pk_data[i]
+	}
+
+	ok = true
+	return
+}
+
+parse_ssh_private_key :: proc(priv_path: string) -> (kp: Ed25519Keypair, ok: bool) {
+	data, err := os.read_entire_file_from_path(priv_path, context.temp_allocator)
+	if err != nil {
+		return
+	}
+
+	text := string(data)
+	lines := strings.split(text, "\n", context.temp_allocator)
+
+	b: strings.Builder
+	strings.builder_init(&b, context.temp_allocator)
+	defer strings.builder_destroy(&b)
+
+	in_block := false
+	for line in lines {
+		trimmed := strings.trim_space(line)
+		if trimmed == "-----BEGIN OPENSSH PRIVATE KEY-----" {
+			in_block = true
+			continue
+		}
+		if trimmed == "-----END OPENSSH PRIVATE KEY-----" {
+			break
+		}
+		if in_block && len(trimmed) > 0 {
+			fmt.sbprintf(&b, "%s", trimmed)
+		}
+	}
+
+	b64_str := strings.to_string(b)
+	decoded, decode_err := base64.decode(b64_str, allocator = context.temp_allocator)
+	if decode_err != nil {
+		return
+	}
+
+	magic := "openssh-key-v1\x00"
+	if len(decoded) < len(magic) {
+		return
+	}
+	for i in 0 ..< len(magic) {
+		if decoded[i] != u8(magic[i]) {
+			return
+		}
+	}
+
+	offset := len(magic)
+
+	ciphername, cipher_ok := read_wire_string(decoded, &offset)
+	if !cipher_ok || ciphername != "none" {
+		return
+	}
+
+	kdfname, kdf_ok := read_wire_string(decoded, &offset)
+	if !kdf_ok || kdfname != "none" {
+		return
+	}
+
+	_, opts_ok := read_wire_string(decoded, &offset)
+	if !opts_ok {
+		return
+	}
+
+	if offset + 4 > len(decoded) {
+		return
+	}
+	num_keys := u32(decoded[offset]) << 24 | u32(decoded[offset + 1]) << 16 |
+		u32(decoded[offset + 2]) << 8 | u32(decoded[offset + 3])
+	offset += 4
+
+	if num_keys != 1 {
+		return
+	}
+
+	_, pub_blob_ok := read_wire_string(decoded, &offset)
+	if !pub_blob_ok {
+		return
+	}
+
+	priv_blob, priv_blob_ok := read_wire_string(decoded, &offset)
+	if !priv_blob_ok {
+		return
+	}
+
+	inner_offset := 0
+	if inner_offset + 8 > len(priv_blob) {
+		return
+	}
+	check1 := u32(priv_blob[inner_offset]) << 24 | u32(priv_blob[inner_offset + 1]) << 16 |
+		u32(priv_blob[inner_offset + 2]) << 8 | u32(priv_blob[inner_offset + 3])
+	inner_offset += 4
+	check2 := u32(priv_blob[inner_offset]) << 24 | u32(priv_blob[inner_offset + 1]) << 16 |
+		u32(priv_blob[inner_offset + 2]) << 8 | u32(priv_blob[inner_offset + 3])
+	inner_offset += 4
+
+	if check1 != check2 {
+		return
+	}
+
+	priv_type, type_ok := read_wire_string(transmute([]u8)priv_blob, &inner_offset)
+	if !type_ok || priv_type != SSH_ED25519 {
+		return
+	}
+
+	pub_wire, pub_ok := read_wire_string(transmute([]u8)priv_blob, &inner_offset)
+	if !pub_ok || len(pub_wire) != 32 {
+		return
+	}
+	for i in 0 ..< 32 {
+		kp.Public[i] = pub_wire[i]
+	}
+
+	priv_wire, priv_ok := read_wire_string(transmute([]u8)priv_blob, &inner_offset)
+	if !priv_ok || len(priv_wire) != 64 {
+		return
+	}
+	for i in 0 ..< 32 {
+		kp.Private[i] = priv_wire[i]
+	}
+
+	ok = true
+	return
+}
+
+is_ed25519_key :: proc(priv_path: string) -> bool {
+	pub_path, _ := strings.concatenate([]string{priv_path, ".pub"}, context.temp_allocator)
+	_, ok := parse_ssh_public_key(pub_path)
+	return ok
+}
+
+is_encrypted_key :: proc(priv_path: string) -> bool {
+	data, err := os.read_entire_file_from_path(priv_path, context.temp_allocator)
+	if err != nil {
+		return true
+	}
+
+	if !strings.contains(string(data), "BEGIN OPENSSH PRIVATE KEY") {
+		return true
+	}
+
+	text := string(data)
+	lines := strings.split(text, "\n", context.temp_allocator)
+
+	b2: strings.Builder
+	strings.builder_init(&b2, context.temp_allocator)
+	defer strings.builder_destroy(&b2)
+
+	in_block := false
+	for line in lines {
+		trimmed := strings.trim_space(line)
+		if trimmed == "-----BEGIN OPENSSH PRIVATE KEY-----" {
+			in_block = true
+			continue
+		}
+		if trimmed == "-----END OPENSSH PRIVATE KEY-----" {
+			break
+		}
+		if in_block && len(trimmed) > 0 {
+			fmt.sbprintf(&b2, "%s", trimmed)
+		}
+	}
+
+	b64_str := strings.to_string(b2)
+	decoded, decode_err := base64.decode(b64_str, allocator = context.temp_allocator)
+	if decode_err != nil {
+		return true
+	}
+
+	magic := "openssh-key-v1\x00"
+	if len(decoded) < len(magic) {
+		return true
+	}
+	for i in 0 ..< len(magic) {
+		if decoded[i] != u8(magic[i]) {
+			return true
+		}
+	}
+
+	offset := len(magic)
+	ciphername, cipher_ok := read_wire_string(decoded, &offset)
+	if !cipher_ok {
+		return true
+	}
+
+	return ciphername != "none"
+}

ssh_test.odin

@@ -0,0 +1,108 @@
+package main
+
+import "core:fmt"
+import "core:testing"
+
+TEST_KEY_DIR :: "fixtures/keys"
+
+@(test)
+test_parse_ed25519_public_key :: proc(t: ^testing.T) {
+	pub, ok := parse_ssh_public_key(TEST_KEY_DIR + "/test_ed25519.pub")
+	testing.expect(t, ok, "expected ed25519 public key to parse")
+	testing.expect(t, pub != [32]u8{}, fmt.tprintf("expected non-zero public key"))
+}
+
+@(test)
+test_parse_ed25519_private_key :: proc(t: ^testing.T) {
+	kp, ok := parse_ssh_private_key(TEST_KEY_DIR + "/test_ed25519")
+	testing.expect(t, ok, "expected ed25519 private key to parse")
+	testing.expect(t, kp.Public != [32]u8{}, "expected non-zero public key")
+	testing.expect(t, kp.Private != [32]u8{}, "expected non-zero private key")
+}
+
+@(test)
+test_parse_rsa_public_key_fails :: proc(t: ^testing.T) {
+	_, ok := parse_ssh_public_key(TEST_KEY_DIR + "/test_rsa.pub")
+	testing.expect(t, !ok, "expected RSA key parsing to fail")
+}
+
+@(test)
+test_is_ed25519_key_true :: proc(t: ^testing.T) {
+	testing.expect(t, is_ed25519_key(TEST_KEY_DIR + "/test_ed25519"))
+}
+
+@(test)
+test_is_ed25519_key_false_for_rsa :: proc(t: ^testing.T) {
+	testing.expect(t, !is_ed25519_key(TEST_KEY_DIR + "/test_rsa"))
+}
+
+@(test)
+test_private_key_pub_matches_public_key :: proc(t: ^testing.T) {
+	pub_from_pub, pub_ok := parse_ssh_public_key(TEST_KEY_DIR + "/test_ed25519.pub")
+	testing.expect(t, pub_ok, "expected public key to parse")
+
+	kp, priv_ok := parse_ssh_private_key(TEST_KEY_DIR + "/test_ed25519")
+	testing.expect(t, priv_ok, "expected private key to parse")
+
+	testing.expect(
+		t,
+		pub_from_pub == kp.Public,
+		fmt.tprintf(
+			"public key mismatch:\n  from .pub: %v\n  from priv: %v",
+			pub_from_pub,
+			kp.Public,
+		),
+	)
+}
+
+@(test)
+test_read_wire_string :: proc(t: ^testing.T) {
+	data := []u8{0, 0, 0, 5, u8('h'), u8('e'), u8('l'), u8('l'), u8('o'), 0, 0, 0, 0}
+	offset := 0
+
+	s, ok := read_wire_string(data, &offset)
+	testing.expect(t, ok, "expected read_wire_string to succeed")
+	testing.expect(t, s == "hello", fmt.tprintf("expected 'hello', got %q", s))
+	testing.expect(t, offset == 9, fmt.tprintf("expected offset 9, got %d", offset))
+
+	s2, ok2 := read_wire_string(data, &offset)
+	testing.expect(t, ok2, "expected second read to succeed")
+	testing.expect(t, s2 == "", "expected empty string")
+}
+
+@(test)
+test_is_encrypted_key_encrypted :: proc(t: ^testing.T) {
+	testing.expect(
+		t,
+		is_encrypted_key(TEST_KEY_DIR + "/test_ed25519_encrypted"),
+		"encrypted key should be detected as encrypted",
+	)
+}
+
+@(test)
+test_is_encrypted_key_unencrypted :: proc(t: ^testing.T) {
+	testing.expect(
+		t,
+		!is_encrypted_key(TEST_KEY_DIR + "/test_ed25519"),
+		"unencrypted key should not be detected as encrypted",
+	)
+}
+
+@(test)
+test_is_encrypted_key_rsa_unencrypted :: proc(t: ^testing.T) {
+	testing.expect(
+		t,
+		!is_encrypted_key(TEST_KEY_DIR + "/test_rsa"),
+		"unencrypted RSA key should not be detected as encrypted",
+	)
+}
+
+@(test)
+test_is_encrypted_key_missing_file :: proc(t: ^testing.T) {
+	testing.expect(
+		t,
+		is_encrypted_key(TEST_KEY_DIR + "/nonexistent"),
+		"missing file should be treated as encrypted (fail-safe)",
+	)
+}
+

table.odin

@@ -0,0 +1,89 @@
+package main
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:io"
+import "core:strings"
+
+render_table :: proc(w: io.Writer, headers: []string, rows: [][]string) {
+	col_widths := make([dynamic]int, 0, len(headers))
+	for i in 0 ..< len(headers) {
+		append(&col_widths, strings.rune_count(headers[i]))
+	}
+	for r in rows {
+		for i in 0 ..< len(r) {
+			rw := strings.rune_count(r[i])
+			if i < len(col_widths) && rw > col_widths[i] {
+				col_widths[i] = rw
+			}
+		}
+	}
+
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+	defer delete(col_widths)
+
+	hline :: proc(w: io.Writer, b: ^strings.Builder, left, mid, right: string, widths: [dynamic]int) {
+		strings.write_string(b, left)
+		for i in 0 ..< len(widths) {
+			for _ in 0 ..< widths[i] + 2 {
+				strings.write_string(b, "\u2500")
+			}
+			if i < len(widths) - 1 {
+				strings.write_string(b, mid)
+			} else {
+				strings.write_string(b, right)
+			}
+		}
+		fmt.wprintf(w, "%s\n", strings.to_string(b^), flush = false)
+		strings.builder_reset(b)
+	}
+
+	hline(w, &b, "\u250c", "\u252c", "\u2510", col_widths)
+
+	cell :: proc(b: ^strings.Builder, s: string, width: int) {
+		extra := len(s) - strings.rune_count(s)
+		fmt.sbprintf(b, " %-*s \u2502", width + extra, s)
+	}
+
+	strings.write_string(&b, "\u2502")
+	for i in 0 ..< len(headers) {
+		cell(&b, headers[i], col_widths[i])
+	}
+	fmt.wprintf(w, "%s\n", strings.to_string(b), flush = false)
+	strings.builder_reset(&b)
+
+	hline(w, &b, "\u251c", "\u253c", "\u2524", col_widths)
+
+	for r in rows {
+		strings.write_string(&b, "\u2502")
+		for i in 0 ..< len(r) {
+			cell(&b, r[i], col_widths[i])
+		}
+		fmt.wprintf(w, "%s\n", strings.to_string(b), flush = false)
+		strings.builder_reset(&b)
+	}
+
+	hline(w, &b, "\u2514", "\u2534", "\u2518", col_widths)
+}
+
+render_json_rows :: proc(w: io.Writer, headers: []string, rows: [][]string) {
+	entries := make([dynamic]map[string]string, 0, len(rows), context.temp_allocator)
+
+	for row in rows {
+		entry := make(map[string]string, len(headers), context.temp_allocator)
+		for i in 0 ..< len(headers) {
+			entry[headers[i]] = row[i]
+		}
+		append(&entries, entry)
+	}
+
+	data, err := json.marshal(entries[:], allocator = context.temp_allocator)
+	if err != nil {
+		fmt.eprintf("Error marshaling JSON: %v\n", err)
+		return
+	}
+	fmt.wprintf(w, "%s", data, flush = false)
+}
+

table_test.odin

@@ -0,0 +1,198 @@
+package main
+
+import "core:encoding/json"
+import "core:fmt"
+import "core:strings"
+import "core:testing"
+
+@(test)
+test_render_json_rows_normal :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	headers := []string{"name", "path"}
+	rows := [][]string{{"foo", "/home/user/.env"}, {"bar", "/home/user/project/.env"}}
+
+	w := strings.to_writer(&b)
+	render_json_rows(w, headers, rows)
+
+	output := strings.to_string(b)
+
+	result: []map[string]string = ---
+	unmarshal_err := json.unmarshal_string(output, &result, allocator = context.temp_allocator)
+	testing.expect(
+		t,
+		unmarshal_err == nil,
+		fmt.tprintf("json unmarshal failed: %v\noutput was: %q", unmarshal_err, output),
+	)
+	testing.expect(t, len(result) == 2, fmt.tprintf("expected 2 rows, got %d", len(result)))
+	testing.expect(
+		t,
+		result[0]["name"] == "foo",
+		fmt.tprintf("expected name=foo, got %q", result[0]["name"]),
+	)
+	testing.expect(t, result[0]["path"] == "/home/user/.env")
+	testing.expect(t, result[1]["name"] == "bar")
+	testing.expect(t, result[1]["path"] == "/home/user/project/.env")
+}
+
+@(test)
+test_render_json_rows_special_chars :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	headers := []string{"key", "value"}
+	rows := [][]string {
+		{"quote", `has "double quotes"`},
+		{"backslash", `path\to\file`},
+		{"newline", "line1\nline2"},
+		{"mixed", `a "b" c\nd`},
+	}
+
+	w := strings.to_writer(&b)
+	render_json_rows(w, headers, rows)
+
+	output := strings.to_string(b)
+
+	result: []map[string]string = ---
+	unmarshal_err := json.unmarshal(
+		transmute([]byte)output,
+		&result,
+		allocator = context.temp_allocator,
+	)
+	testing.expect(
+		t,
+		unmarshal_err == nil,
+		fmt.tprintf("json unmarshal failed: %v\noutput was: %q", unmarshal_err, output),
+	)
+	testing.expect(t, len(result) == 4)
+	testing.expect(
+		t,
+		result[0]["value"] == `has "double quotes"`,
+		fmt.tprintf("got %q", result[0]["value"]),
+	)
+	testing.expect(t, result[1]["value"] == `path\to\file`)
+	testing.expect(t, result[2]["value"] == "line1\nline2")
+	testing.expect(t, result[3]["value"] == `a "b" c\nd`)
+}
+
+@(test)
+test_render_json_rows_empty :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	headers := []string{"name"}
+	rows: [][]string
+
+	w := strings.to_writer(&b)
+	render_json_rows(w, headers, rows)
+
+	output := strings.to_string(b)
+
+	result: []map[string]string = ---
+	unmarshal_err := json.unmarshal_string(output, &result, allocator = context.temp_allocator)
+	testing.expect(
+		t,
+		unmarshal_err == nil,
+		fmt.tprintf("json unmarshal failed: %v\noutput was: %q", unmarshal_err, output),
+	)
+	testing.expect(t, len(result) == 0)
+}
+
+@(test)
+test_render_table_normal :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	headers := []string{"Name", "Path"}
+	rows := [][]string{{"foo", "/home/user/.env"}, {"bar", "/home/user/project/.env"}}
+
+	w := strings.to_writer(&b)
+	render_table(w, headers, rows)
+
+	output := strings.to_string(b)
+
+	expected := `┌──────┬─────────────────────────┐
+│ Name │ Path                    │
+├──────┼─────────────────────────┤
+│ foo  │ /home/user/.env         │
+│ bar  │ /home/user/project/.env │
+└──────┴─────────────────────────┘
+`
+	testing.expect(
+		t,
+		output == expected,
+		fmt.tprintf(
+			"table output mismatch\n--- expected ---\n%s\n--- got ---\n%s\n",
+			expected,
+			output,
+		),
+	)
+}
+
+@(test)
+test_render_table_empty :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	headers := []string{"Name"}
+	rows: [][]string
+
+	w := strings.to_writer(&b)
+	render_table(w, headers, rows)
+
+	output := strings.to_string(b)
+
+	expected := `┌──────┐
+│ Name │
+├──────┤
+└──────┘
+`
+	testing.expect(
+		t,
+		output == expected,
+		fmt.tprintf(
+			"table output mismatch\n--- expected ---\n%s\n--- got ---\n%s\n",
+			expected,
+			output,
+		),
+	)
+}
+
+@(test)
+test_render_table_unicode :: proc(t: ^testing.T) {
+	b: strings.Builder
+	strings.builder_init(&b)
+	defer strings.builder_destroy(&b)
+
+	headers := []string{"Status", "Detail"}
+	rows := [][]string{{"\u2713 Available", "ok"}, {"\u2717 Missing", "fail"}}
+
+	w := strings.to_writer(&b)
+	render_table(w, headers, rows)
+
+	output := strings.to_string(b)
+
+	expected := `┌─────────────┬────────┐
+│ Status      │ Detail │
+├─────────────┼────────┤
+│ ✓ Available │ ok     │
+│ ✗ Missing   │ fail   │
+└─────────────┴────────┘
+`
+	testing.expect(
+		t,
+		output == expected,
+		fmt.tprintf(
+			"table output mismatch\n--- expected ---\n%s\n--- got ---\n%s\n",
+			expected,
+			output,
+		),
+	)
+}
+

version.txt

@@ -0,0 +1 @@
+0.3.0