3dtours
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The menu that hangs off a folder is a menu read mid-scan, with the eye still moving down the column, and it was drawn to the measure of a page rather than of a list: a box wide enough to be a destination, type the size of a heading. A catalogue's own context menu is a thing passed over on the way somewhere else — it is sized to its words and to the row it hangs off, and the reader's eye steps across it without stopping. The type comes down a point, the rows tighten to the tree's own measure, and the frame around them thickens to a radius the rows themselves use. The clamp that keeps it in the window follows the smaller box, so a menu opened near the right or the bottom edge no longer floats an inch off the pointer for room it does not use. A row that is being read has exactly one thing to be asked of it — that it stop — where a row at rest has the reading that brings it up to date. The menu said RESCAN either way, greyed while a scan was up, which is a command offered and refused in the same breath. The two never both apply, so the menu now carries the one the row is actually in: a roll being read offers STOP SCAN and stops that roll; a roll at rest offers UPDATE... and reads it again. A row with folders under it grows a third thing — a fold that closes the branch and not merely the row, because a reader who is done with a tree means the whole of it shut, and closing only the row they happened to point at leaves the children standing open underneath it. The last is a matter of what a row is allowed to claim. Every row of a roll spanning the tree spun while that roll was being read, so a reader looking at a tree of a hundred folders saw a hundred rows each insisting it was the one being read, when the reading had been pointed at one of them. A row now says it is being read only when it is the row the reading was kept to — the folder it was pointed at, which for a whole roll is the roll's own row. A tree that says all of itself is busy when one branch of it is says nothing a reader can trust.
RecipesCam web — self-contained stack
A Docker-hosted web build of RecipesCam. Everything it needs is in this folder: move it to another machine, run two commands, and the app is up. It does not need the React Native project around it.
cp .env.example .env
docker compose up -d --build
# → http://localhost:8090
What runs where
| Service | Image | Role |
|---|---|---|
frontend |
nginx:1.27-alpine (built by frontend/Dockerfile) |
Static SPA + /api/ reverse proxy |
api |
node:22-slim (built by backend/Dockerfile) |
Accounts + saved recipes, SQLite on ./data |
frontend resolves api through Docker's embedded DNS and proxies /api/* to
it — that is why the API container is named api and why it is not published on
the host. Only ${WEB_PORT:-8090} is exposed.
Photos never leave the browser. The CanvasKit render pipeline (grade, frame, watermarks, JPEG encode) runs in the visitor's tab; the API only stores recipes as JSON.
Layout
docker-compose.yml the stack
.env.example WEB_PORT
data/ SQLite (created on first run, gitignored)
backend/ Fastify + better-sqlite3 API, own Dockerfile
frontend/ Vite + React + CanvasKit SPA, own Dockerfile + nginx.conf
shared/ vendored copies of the app's types + utils (see below)
src/engine/ skiaShim.ts (CanvasKit) + exportEngine.ts (render pipeline)
+ session.ts (localStorage/IndexedDB studio persistence)
Vendored files
frontend/shared/{types/index.ts,utils/*.ts} are byte-identical copies of
src/types/index.ts and ten src/utils/*.ts files from the React Native
project (@shopify/react-native-skia is aliased to src/engine/skiaShim.ts in
vite.config.ts + tsconfig.json, so those files compile unchanged):
cinemaShader colorUtils defaultRecipes exifWrite frameUtils jpegDpi
paramDefs recipeShare skiaImage toneShader.
The landing page needs no CDN: frontend/public/assets/fonts/*.woff2 are the
seven self-hosted faces behind the three font groups the Themes menu offers
(Plus Jakarta Sans / Inter / JetBrains Mono, Fraunces / Be Vietnam Pro /
Courier Prime, Be Vietnam Pro / Space Mono — all SIL OFL, pulled from Google
Fonts, vietnamese + latin + latin-ext subsets), and
frontend/public/assets/samples/s*.jpg are the six placeholder negatives the
film strip, preset tester and QR card show (swap them for real graded stills
whenever we have them). Its one foreign request is the QR image from
api.qrserver.com, which degrades to an empty slot offline.
When the app changes one of them, copy it back in — the renderer is only "parity" for as long as these stay in sync:
cd <repo>/docker/frontend/shared/utils
cp <repo>/src/utils/<name>.ts .
Operations
docker compose logs -f api # API log
docker compose restart api # after backend/src changes (rebuild: --build)
docker compose down # stop; ./data survives
Backup is the ./data folder — that is the whole database.
Checks
curl -s http://localhost:8090/api/health # {"ok":true}
curl -sI http://localhost:8090/ # 200, index.html
Then open the UI, drop a photo in, and confirm the preview shows the picture and
EXPORT downloads a JPEG that opens. The preview going solid black while the
export still reports a plausible size is the one failure mode worth knowing: it
means the CanvasKit GPU surfaces lost their shared GrDirectContext (see
frontend/src/engine/skiaShim.ts), and with no GPU the raster fallback renders
the same pipeline correctly, just slower.