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The apps connect to a server you host yourself, so your data never leaves your machine. Latest release: …
Sempa runs on a server you host yourself. Clone the repo and run the guided installer — it asks a few questions (URL, auth, optional keys), builds the image, and brings everything up in about two minutes.
Build from source or pull the prebuilt multi-arch image from GHCR — it runs as a non-root container. Works behind any reverse proxy, and best paired with Tailscale to reach it privately from anywhere — no ports open to the internet.
Install a client, enter your server address, and sign in. Every app is local-first — it keeps working offline and syncs the moment your server is reachable again.
The desktop app (Tauri). Installs in seconds, runs local-first with a floating widget and reminder popups. Pick the build that matches your processor.
Not code-signed yet. Windows may show a SmartScreen warning the first time — choose More info → Run anyway. Proper signing is in progress, and verified builds are always on GitHub Releases.
The desktop app (Tauri) — the same floating widget, tray and reminders as Windows. The AppImage is portable and self-updates; .deb / .rpm install system-wide.
Arch (AUR sempa-bin) and Flatpak / Flathub are on the way.
The mobile app (Capacitor). Local-first, with on-device reminder alarms that fire even fully offline.
For now, sideload the .apk — enable “install unknown apps” for your browser. Google Play & F-Droid listings are on the way.
Visit your Sempa instance and install it straight from your browser. Works on desktop and mobile.
Every release download is signed with cosign (Sigstore, keyless) — each file ships a .cosign.sig + .cosign.pem you can check with cosign verify-blob.
Running Sempa on an ultrawide display or a spare Raspberry Pi? There's a glanceable cockpit for the Corsair Xeneon Edge and a build-your-own desk Dock — see Companions →
These aren't built yet — and they're exactly where help is welcome. If you'd like to bring Sempa to one of these, the Contribute page is the place to start.
A Tauri build for Mac — most of the groundwork is shared with Windows.
A Capacitor build for iPhone & iPad, with on-device reminders.