build: Added Makefile for cross-platform builds.

.gitignore

@@ -5,5 +5,6 @@
 man 
 
 # build artifacts
+builds
 envr
 result

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
+LDFLAGS := -X github.com/sbrow/envr/cmd.version=v$(VERSION) -s -w
+
+# 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): $(BUILD_DIR)
+	@echo "Building for Linux AMD64..."
+	GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -ldflags "$(LDFLAGS)" -o $(LINUX_AMD64_BIN) .
+	@echo "Built $(LINUX_AMD64_BIN)"
+
+# Build Linux ARM64
+$(LINUX_ARM64_BIN): $(BUILD_DIR)
+	@echo "Building for Linux ARM64..."
+	GOOS=linux GOARCH=arm64 CGO_ENABLED=0 go build -ldflags "$(LDFLAGS)" -o $(LINUX_ARM64_BIN) .
+	@echo "Built $(LINUX_ARM64_BIN)"
+
+# Build Darwin ARM64 (Mac)
+$(DARWIN_ARM64_BIN): $(BUILD_DIR)
+	@echo "Building for Darwin ARM64..."
+	GOOS=darwin GOARCH=arm64 CGO_ENABLED=0 go build -ldflags "$(LDFLAGS)" -o $(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
+	@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)"

flake.nix

@@ -21,7 +21,12 @@
       imports = [
         inputs.treefmt-nix.flakeModule
       ];
-      systems = [ "x86_64-linux" ];
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+
+        "aarch64-darwin"
+      ];
 
       perSystem =
         { pkgs, system, inputs', ... }: {
@@ -92,6 +97,9 @@
                 gotools
                 cobra-cli
 
+                # Build tools
+                zip
+
                 # IDE
                 unstable.helix
                 typescript-language-server