SALAH — prayer times for Casablanca (Xiaomi Watch S4)

Offline prayer-time companion: shows today's six times (FAJR, SHURUK, DHUHR, ASR, MAGHRIB, ISHA) with the next prayer highlighted and a countdown banner.

Status: VERIFIED MATH (matches AlAdhan on 3 reference dates); on-watch render pending user confirmation.

Method

Morocco (Ministry of Habous), matching AlAdhan method=21:

Fajr 19°, Isha 17° (twilight angles)
Standard Asr (shadow factor 1× — Maliki default in Morocco)
Dhuhr = solar noon + 5 min; Maghrib = sunset + 5 min (AlAdhan's baked offsets)
Location hardcoded: Casablanca 33.5731, −7.5898 · fixed TZ = UTC+1. Ramadan clock changes are not handled by this version.

All computation happens on the watch — no GPS, no network. Pure solar math (same Meeus approach as the sundial) lives in src/common/prayer.js.

Screen (v0.6)

Restores the exact native list markup, row styles and page logic from v0.3, which the user confirmed scrolled smoothly on their watch
Removes ALL scroll handlers, zoom logic and dynamic font-style bindings
Fixed 28px prayer names and 36px times, side by side in 80px rows
Pure black background; enlarged 50px header clock; no swipe hint
Next-prayer countdown above the list; normal system back exits

The user reported v0.4 and v0.5 lag during swiping (not only when stopping). tests/native-scroll.cjs verifies parity with the smooth v0.3 baseline and absence of the zoom path. v0.6 tests/build pass; device smoothness still needs confirmation. Old preview images document earlier releases, not v0.6.

Project layout

src/
├── app.ux, manifest.json   # com.ilias.salah, watch, designWidth 466
├── common/
│   ├── prayer.js           # times/format/nextPrayer/formatCountdown — pure, unit-tested
│   └── icon.png            # 192×192 circular icon (user-supplied mosque art)
└── pages/index/index.ux    # layout + update loop
tests/
├── prayer.cjs              # 10 tests vs AlAdhan reference times (3 dates)
├── page.cjs                # 11 wiring/layout tests (incl. chord-fit assertions)
├── make_icon.py            # icon conversion pipeline (disc detect → round mask → 192²)
└── check-rpk.py            # verifies icon/manifest inside the built .rpk

Build & test

npm ci
npm run release
node tests/prayer.cjs
node tests/page.cjs
node tests/amoled.cjs
node tests/native-scroll.cjs

Install

Side-load dist/com.ilias.salah.release.*.rpk via AstroBox. Releases: https://gitea.oimcloud.myaddr.tools/codex-bot/vela-salah

Accuracy note

Verified against AlAdhan API (method 21) for 2026-09-09, 2026-01-15, 2026-07-01 — all six times within 2 minutes on every date. Tolerance covers the low-precision solar vector (±0.01°) plus rounding.

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