Jean-Luc Makiola
8a9e6f0ee8
The table centered them but Gitea draws cell borders we can't strip. Stack the two badges on separate centered lines instead — no borders, each keeps its own size. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
116 lines
5.0 KiB
Markdown
116 lines
5.0 KiB
Markdown
<div align="center">
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<img src="fastlane/metadata/android/en-US/images/icon.png" width="112" alt="Calendula icon">
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<h1>Calendula</h1>
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<p><strong>A modern Material 3 Expressive calendar for Android.</strong><br>
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Reads, writes, and reminds — on top of the system calendar, with zero network access.</p>
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<p>
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<a href="https://gitea.jeanlucmakiola.de/makiolaj/calendula/actions"><img src="https://gitea.jeanlucmakiola.de/makiolaj/calendula/actions/workflows/ci.yaml/badge.svg?branch=main" alt="CI"></a>
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<img src="https://img.shields.io/badge/Android-10%2B-3DDC84?logo=android&logoColor=white" alt="Android 10+">
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<img src="https://img.shields.io/badge/Kotlin-Compose-7F52FF?logo=kotlin&logoColor=white" alt="Kotlin + Compose">
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<img src="https://img.shields.io/badge/Material%203-Expressive-4285F4" alt="Material 3 Expressive">
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<a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-green" alt="MIT License"></a>
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</p>
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<p>
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<a href="https://f-droid.org/packages/de.jeanlucmakiola.calendula/"><img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="80"></a>
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</p>
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<p>
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<a href="https://ko-fi.com/jeanlucmakiola"><img src="https://storage.ko-fi.com/cdn/kofi2.png?v=3" alt="Support me on Ko-fi" height="56"></a>
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</p>
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<p>
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/01-week.png" width="19%" alt="Week view">
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/02-month.png" width="19%" alt="Month view">
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/04-detail.png" width="19%" alt="Event detail">
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/05-edit.png" width="19%" alt="Event form">
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<img src="fastlane/metadata/android/en-US/images/phoneScreenshots/06-onboarding.png" width="19%" alt="Reminder onboarding">
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</p>
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</div>
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Calendula is named after the flower whose name — like the word *calendar* —
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comes from the Latin *kalendae*, the first day of the month. It lives
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entirely on top of Android's `CalendarContract`: any calendar synced to your
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device (CalDAV via DAVx5, Google, local, WebCal subscriptions, …) simply
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appears, and everything you create or edit syncs back the same way. No own
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database, no sync stack reinvented.
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## ✨ Features
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**Calendar**
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- Month, week, and day views with a one-tap view switcher
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- Full event details — attendees and their responses, reminders, recurrence
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(humanized), availability, visibility, foreign time zones
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- Per-calendar visibility toggle, grouped by account
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**Editing**
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- Create, edit, and delete events — including recurring events with scoped
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writes: *only this event*, *this and all following*, or *the whole series*
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- Recurrence picker with one-tap presets and custom rules (interval, weekday
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toggles, end conditions); rules it can't express are preserved verbatim
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- Conflict-safe saves: if an event changed elsewhere while you were editing,
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Calendula asks instead of silently overwriting
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- Read-only calendars (WebCal, birthdays) are detected and respected
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**Reminders**
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- Event reminders delivered by Calendula itself as notifications —
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essential when it's your only calendar app, since Android delegates
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reminder delivery to calendar apps
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- Tap a reminder to land on the event
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**Design & privacy**
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- Real Material 3 Expressive throughout — dynamic color (Android 12+),
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expressive motion and shapes, light/dark theme
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- German and English UI, per-app language setting
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- **Zero telemetry, zero analytics, no internet permission** — your data
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never leaves the device
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## 📦 Install
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### F-Droid (recommended)
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Calendula is on the **official [F-Droid](https://f-droid.org) repository** —
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just search for **Calendula** in any F-Droid client, or
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[install it from f-droid.org](https://f-droid.org/packages/de.jeanlucmakiola.calendula/).
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### Self-hosted repo (latest builds)
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New versions are built, signed, and published to a self-hosted repository the
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moment each tag lands — usually a few days ahead of the official repo, which
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rebuilds on F-Droid's own schedule. Add it for the freshest builds:
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1. In your F-Droid client, open *Settings → Repositories → Add* (or open the
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link below on your phone):
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```
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https://apps.dev.jeanlucmakiola.de/dev/fdroid/repo?fingerprint=C2C0640402BF458FC0ED957AF0B37AA4C14022E72F89CE90B5965B458CF73425
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```
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<sub>Repo: `https://apps.dev.jeanlucmakiola.de/dev/fdroid/repo` ·
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fingerprint (SHA-256):
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`C2C0 6404 02BF 458F C0ED 957A F0B3 7AA4 C140 22E7 2F89 CE90 B596 5B45 8CF7 3425`</sub>
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2. Refresh, search for **Calendula**, install.
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Both channels share the same signing key, so you can switch between them
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without reinstalling. Or build from source — see below.
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## 📚 Documentation
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- **[Building from source](docs/BUILDING.md)** — requirements and Gradle tasks
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- **[Architecture](docs/ARCHITECTURE.md)** — the layered design and key pipelines
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- **[Roadmap](.planning/ROADMAP.md)** — what's shipped and what's next
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## 📜 License
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[MIT](LICENSE) — Jean-Luc Makiola, 2026
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