Jean-Luc Makiola
e5b523e907
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Captured from discussion, deliberately undetailed: permission-free contact address picker, Photon-based address autocomplete (would need INTERNET — explicit go/no-go on the no-network promise before any work), inline contact suggestions, attendee editing as its own future milestone. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Calendula
A modern Material 3 Expressive calendar app for Android.
Calendula is named after the flower of the same name, whose name comes from
the Latin kalendae — the first day of the month — the same root as the
word "calendar". Calendula reads from Android's built-in CalendarContract,
so any calendar source synced to your device (CalDAV via DAVx5, Google,
local, WebCal subscriptions, ...) is shown.
Features
- Month, Week, and Day views
- Full event details — attendees, reminders, recurrence, availability, and more
- Create, edit, and delete events — recurring events with scoped writes (only this event / this and all following / whole series) and a simple recurrence picker
- Reminder notifications, delivered by Calendula itself (tap opens the event)
- Multi-calendar visibility toggle
- Material You Dynamic Color (Android 12+)
- Light/Dark theme follows system
- German + English UI
Building
Requires Android SDK 36 and JDK 17. The Gradle wrapper is checked in, so no host Gradle install is needed:
# Build debug APK
./gradlew assembleDebug
# Run unit tests
./gradlew test
# Run lint
./gradlew lint
If your default JDK is something other than 17, set JAVA_HOME explicitly:
JAVA_HOME=/path/to/jdk-17 ./gradlew assembleDebug
License
MIT — Jean-Luc Makiola, 2026