makiolaj 7f8b2e79fc feat(stopwatch): the engine, its one seam and the verbs the shade can press
A third engine beside the alarms' and the timers', and a small one: four
verbs behind a single mutex, no scheduler and nothing that rings. Start,
pause, lap and reset are here rather than on the repository because three of
them arrive as notification buttons and must mean the same thing whichever
surface pressed them.

The verbs guard on the *reading's* mode, not the stored row, so a run whose
anchor a reboot invalidated resumes when the tab says Resume instead of
silently doing nothing; resuming banks the last lap's total first, so the
readout never stands still and never walks backwards. `StopwatchIntents`
namespaces the actions and hands out request codes that cannot collide with
the timers'. The service is reached through one seam, which keeps the engine
free of Android and lets the tests watch the transitions in order.
2026-09-22 10:23:36 +02:00
2026-09-12 16:49:05 +02:00

Clockula

A modern Material 3 Expressive clock app for Android.
Alarms, timers, stopwatch and world clock. Open standards, no account required.

CI Android 10+ Kotlin + Compose Material 3 Expressive MIT License

Clockula is the clock sibling to Calendula (calendar) and Agendula (tasks). The name follows theirs: clock, given Calendula's -ula ending. A Calendula flower head is botanically a cluster of many small florets, so the three apps are florets of one bloom — and they share one, floret-kit.

🚧 Early development. The spec is locked; the app is being built. See docs/ROADMAP.md for where it actually is.

The honest difference from its siblings

Calendula is a pure front-end over Android's CalendarContract. Agendula speaks the dmfs TaskContract. Both put a good interface on a standard someone else already maintains.

There is no open provider behind a clock. Alarms, timers and laps are Clockula's own data, so Clockula is the first app in the family to own its storage — by design, not as a fallback. What that commitment is replaced with is the first section of docs/PLAN.md, and it comes down to three things:

  • Clockula speaks Android's standard alarm contract. It implements android.provider.AlarmClock in full, so your assistant and your automation apps can set alarms and timers in it exactly as they would in any stock clock, and the system status bar and lock screen show its next alarm.
  • World clocks are IANA time zones, not a bespoke city list that goes stale.
  • Your data exports to a documented, versioned JSON file whenever you want it, because data you can't take with you isn't really yours.

Alarms that actually ring

An alarm app is only worth having if you can trust it, so Clockula treats that as the feature rather than the plumbing. Alarms are scheduled as real alarm clocks — doze-exempt, visible to the system — and re-resolved against your current time zone whenever anything moves underneath them, so DST and travel don't silently shift them.

When something on your device would stop an alarm ringing, Clockula tells you which setting it is and takes you there, instead of failing quietly at 7am.

Documentation

Start with docs/: PLAN.md is the spec and the reasoning, ROADMAP.md is the status, ARCHITECTURE.md is how the code is put together, and RELEASING.md is the release runbook.

Building

git clone --recurse-submodules https://codeberg.org/jlmakiola/clockula.git
cd clockula
./gradlew assembleDebug

floret-kit is a submodule built from source as a Gradle composite build, so --recurse-submodules is not optional. The included build needs to find the Android SDK on its own: either export ANDROID_HOME, or drop a sdk.dir=… line in a (gitignored) floret-kit/local.properties.

Licence

MIT — see LICENSE.

S
Description
A modern Material 3 Expressive clock app for Android — sibling to Calendula and Agendula. Alarms, timers, stopwatch, world clock.
Readme MIT
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