- [ ] add content-hash fingerprinting for tailwind cache busting.
- [ ] Evaluate Tufte CSS — borrow sidenote CSS or replace TailwindCSS entirely
  - Option B: Steal Tufte's sidenote/margin-note CSS (adapt for dark theme), keep TailwindCSS
  - Option C: Full Tufte CSS — drop TailwindCSS, no build step, semantic HTML, customize for dark theme + Roboto
  - Our sidenote HTML pattern already matches Tufte's exactly
- [ ] Block attributes on code fences (`{ #ex-1 }`) — hello-world.md
- [x] Emoji shortcodes (`:shrug:` etc.) — 2 instances
  - [ ] Backslash in shrug not visible.
- [ ] include-code shortcode (`{{< include-code ... >}}`) — i-ported-fd-to-odin
- [x] Nix build integration — main flake runs thor + tailwindcss instead of Hugo
- [ ] Fix copy-to-clipboard button x-axis positioning inside code blocks
- [ ] Content-hash fingerprinting for CSS and JS cache busting
- [x] OpenGraph meta tags
- [ ] Search up for `thor.json` files.
- [ ] OpenGraph meta tags — verify all fields match production site
- [ ] Nav items should be active when the current page is selected.
- [ ] Review every file in thor
  - [ ] Review alerts.odin
  - [ ] Review content.odin
  - [ ] Review emoji.odin
  - [ ] Review feed.odin
  - [ ] Review footnotes.odin
  - [ ] Review frontmatter.odin
  - [ ] Review main.odin
  - [ ] Review main_test.odin
  - [ ] Review mustache_test.odin
  - [ ] Review render.odin
  - [x] Review site.odin