3dtours
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The strip a chip opened kept a row of its own while a knob's ruler opened over it, so WB's COLOR TEMP put the panel on the screen twice — the rows in the strip and the panel under them — and charged the photo a row for the saying. The path under the bar (.crumb) already names the panel the ruler came from and is one tap from its strip, so the ruler now stands in the strip's slot and the strip stands down with the bar: on 390x844 LIGHT's WB strip is 42px and the photo 639px, COLOR TEMP's ruler 60px and the photo 621px, the path TABS > LIGHT > WB > COLOR TEMP walking back to the strip and then to the bar. A sub-chip also wore the initials of its own label on a tile over it — COLOR TEMP as CT, PRO NEG HI as PNH — which is the name the pill already prints, spelled twice and set 60px tall: LIGHT's WB strip measured 73px on that tile, 42px as the name alone. The ruler's own "<" goes with them: the path names the strip it would reopen, and a wide screen draws neither the path nor a ruler in the bar. Checks: - npm run build (tsc --noEmit + vite) clean: dist/assets/index-2IP_1LL_.css 71.42 kB. - Chromium 390x844, light and dark, LIGHT: the bar 40px / the photo 641px; WB open, the bar gone and its strip 42px in the slot, the photo 639px; COLOR TEMP's ruler 60px in that slot, the photo 621px, the path TABS > LIGHT > WB > COLOR TEMP; crumb-strip lands back on the WB strip and crumb-tab on the bar at 641px. No page error and no sideways scroll (390px of 390px) in any state; on 1280x900 .dev-panels is painted and .dev-chips/.crumb are not.
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.