makiolaj 8154a9df36 sync: reminders survive the alarm ceiling, and a save is not undone by one
setExactAndAllowWhileIdle throws at 500 concurrent alarms per uid, which
the per-occurrence model reaches at roughly seventeen daily recurring
tasks over a thirty-day window. When it threw mid-loop store.replace
never ran, so every alarm armed on that pass went unrecorded —
uncancellable, and firing for tasks that no longer exist — and the
exception escaped into BootReceiver's goAsync(). The set is bounded
soonest-first well below the ceiling, since the far edge of the window
is what the next sync arms anyway, and a single refusal now costs that
one alarm rather than the pass.

And the reminder sync shared the write's runCatching in the edit screen,
so a scheduling failure reported a task that *was* written as unsaved.
The user taps Save again on a screen whose editingTaskId is still null
and gets a second task — the reminder would have been re-synced on the
next data change regardless. The created id is also remembered now, so a
second Save updates rather than duplicates whatever sent them back.
2026-09-09 12:19:04 +02:00
2026-09-07 18:41:45 +02:00

Agendula

A modern Material 3 Expressive task app for Android.
Keeps your tasks on your device, or on top of a tasks provider you already use. Open standards, no account required.

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

Agendula is the task-list sibling to Calendula. Where Calendula is a pure front-end over Android's CalendarContract, Agendula keeps its own store, designed around RFC 5545's VTODO — the same tasks DAVx5 (and SmoothSync, DecSync, …) sync out of your CalDAV server. It can also read and write a tasks provider you already have, for anyone already syncing that way.

The name rhymes with its sibling on purpose: Agendula is agenda — Latin for “things to be done” — given Calendula's -ula ending. Calendula keeps your days; Agendula keeps your to-dos. (A Calendula flower head is botanically a cluster of many small florets — so the two apps are florets of one bloom.)

Where your tasks live — your choice

Where Sync Needs
On your device (default) Agendula's own database none yet — CalDAV sync of our own is planned nothing. No account, no permissions, no other app
In a provider you already use OpenTasks or tasks.org whatever syncs it for you — DAVx5 and friends that app installed, and its read/write permission

Agendula's own store is an ordinary app database — nothing is published to other apps, so there is no authority to clash over and no permission to grant. It coexists with OpenTasks rather than replacing it: installing one never breaks the other, and if you already sync through a provider, that keeps working exactly as it did.

Recurring tasks are expanded per RFC 5545, and everything the schema does not model is round-tripped verbatim rather than dropped — so passing your tasks through Agendula does not quietly lose fields a server sent.

Your tasks are exportable as standard iCalendar .ics files at any time, because data you can't take with you isn't really yours.

Status: backend complete, UI catching up. Storage, reads and writes, smart-list filtering, a self-scheduled reminder engine, and export are built and unit-tested. The Material 3 Expressive screens are being built on top, one at a time — the storage-mode picker and export screen are not there yet. See docs/ROADMAP.md for status, docs/ARCHITECTURE.md for how it's built, and docs/STORAGE-AND-SYNC.md for why storage works the way it does.

Sync sources (by design)

In external-provider mode Agendula works with anything that writes to that provider — DAVx5 (CalDAV), SmoothSync, CalDAV-Sync, DecSync CC, or any Android sync adapter — because it builds on the provider, not on any one sync app. Google Tasks / Microsoft To Do are out of scope by design (proprietary; they would mean owning a sync stack). Open standards — CalDAV / iCalendar / DecSync — are the lane.

Translations

Agendula ships in English so far, and would like not to. Translations are managed on a self-hosted Weblate, and partial ones are fine — an untranslated string simply falls back to English.

→ Help translate Agendula

No coding needed: register on the Weblate server, pick (or request) a language, and translate the strings in your browser. You can also reach this link in the app from the top of Settings → App language.

License

MIT — see LICENSE.

S
Description
A modern Material 3 Expressive task app for Android — sibling to Calendula, over the OpenTasks provider.
Readme MIT
3.9 MiB
v1.0.0
Latest
2026-09-24 20:09:02 +00:00
Languages
Kotlin 98.3%
Python 1%
Shell 0.6%
Ruby 0.1%