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Papure/README.md
agent 5fb11e4928 Let the page fling work anywhere, with a setting to turn it off 
A fling toward a free side of the active page now offers a page at any
zoom or pan position, not only once that edge is on screen. If the
side's plus is visible it pulses as before; otherwise an "Add page"
button appears at that edge of the screen, tapped through the same
palm-checked gesture as the plus.

Settings → Pen & touch gets "Swipe to add pages" (on by default).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GaoZtJQZwLXkEgWs8twCia
2026-09-27 21:43:09 +00:00

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Papure

Lecture notes as a tree of pages ("comb") — live-preview markdown underneath, vector ink on top — stored as one dual-layer PDF per canvas and synced through a GitHub repo. See spec.md for the design.

Run

npm install
npm run dev        # http://localhost:5173
npm test           # unit tests (tree, markdown, PDF round trip, sync against a fake GitHub)
npm run check      # type-check
npm run build      # static PWA in build/ — serve it from any static host (HTTPS for PWA install)

Docker

docker compose up -d --build    # http://localhost:8080 (set PAPURE_PORT to change)

The image builds the PWA and serves it with nginx. Put an HTTPS reverse proxy in front of it: installing the PWA and the offline service worker both need HTTPS. To update, git pull and run the same command again.

Using it

  • Tools (bottom bar): Text T, Pen P, Highlighter H, Eraser E, Import PDF, Undo/Redo, zoom. The pen's eraser end erases too.
  • Pages: the "+" circles beside the active page add a page there (a quick finger flick toward a free side offers one there; turn it off under Settings → Pen & touch); Alt+Arrow moves to (or creates) the neighbour. Right-click a page or use its ⋯ button to insert, resize or delete it.
  • Grid: the faint background grid has one cell per active page; Settings → Appearance can hide it or subdivide it.
  • Importing a PDF into a non-empty canvas shows every free spot; click one to place the chain. Into a blank canvas it simply replaces the empty page. The Files panel can also import a PDF as a new canvas.
  • View: wheel/trackpad pans, Ctrl+wheel or pinch zooms, Ctrl+0 fits the page, Ctrl+9 shows the whole tree, space-drag or middle-drag pans.
  • Sync: Settings → Sync. Use a fine-grained token with Contents: read & write on the repo. Edits autosave locally; pushes happen every N minutes and on Ctrl+S / the sync button. Conflicts: newer wins.

Layout

  • src/lib/model — page tree (pure functions: insert/remove/flatten/layout).
  • src/lib/editor — markdown analysis shared by the CodeMirror live preview and the PDF text layout.
  • src/lib/pdf — PDF writer (vector text, Ink annotations, embedded source-of-truth files) and reader.
  • src/lib/ink — stroke recording/outlines and palm rejection (ported from palm-rejection-test.html).
  • src/lib/storage, src/lib/sync — IndexedDB vault and GitHub sync.

Fonts in static/fonts are pre-subset (scripts/subset-fonts.sh) because pdf-lib's own subsetter drops glyphs.