Seb3thehacker
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Gearslip now reads messages aloud and takes replies by voice. It asks whether to reply, reads the reply back and sends it after a countdown. Say "cancel" or "change it" to stop or redo it, or tap a quick reply. Speech-to-text runs on the phone with whisper.cpp and a small Whisper model, so voice works without Google services. The model ships in the repo, so a fresh clone builds with nothing to download. New messages show as one card at the top right, with a bar counting down to when it closes or sends. Other changes: - Steering wheel buttons, knobs and D-pads drive the car screen. - Smoother car audio: chunks wait for the car instead of dropping. - Sharper, more responsive video. - The Gearslip switch in Settings now stops it taking the USB connection. - Apps that refuse Gearslip say so instead of loading forever. - The phone asks for notification permission. - The home screen stays upright. - The car screen shows what's new after an update.
Gearslip
Bring any app to your car screen.
What Gearslip is
Gearslip is an Android Auto client for the phone. It speaks the Android Auto protocol directly to a car head unit over USB, with no Google software in the path. Gearslip acts as a Car App Library host: an app that ships a car interface hands Gearslip a template, and Gearslip renders that template natively on the car screen. Nothing is mirrored from the phone. For apps without a car interface, Gearslip offers a separate screen-sharing mode.
Features
- Phone calls. Dial from a keypad, or search your contacts, then confirm before the call goes out.
- Navigation. Gearslip hosts real Car App Library map apps on the car screen; Organic Maps and OsmAnd both work today.
- Music. Browse, play, and queue tracks from a car-enabled media app, with a Now Playing view, an Up Next queue, and lyrics.
- The web. A browser template with its own on-screen keyboard, for anything that doesn't ship a car interface of its own.
- Weather and the day ahead. A dashboard screen shows the week's calendar next to the current and coming weather.
- Notifications. Read and reply to notifications from the car screen, using the same on-screen keyboard.
Status
- The connection is wired only, for now. Plug the phone into the head unit's USB port; Gearslip does not yet offer a wireless option.
- Setup walks you through it. First launch asks for the Android Auto certificate, then one permission at a time, each with a plain reason and an Allow or Skip. A help screen inside the car answers anything setup didn't cover.
- Templated apps work. Gearslip renders all 16 template types that the Car App Library defines, and it draws its own keyboard for search, sign-in, and text fields. It has been tested against several real navigation and media apps.
- Gearslip works with LIVI, LIVI, used in open source car dashboards, is fully supported by Gearslip.
- Audio reaches the car by capturing playback, not by mirroring the screen. Android requires a screen-share style consent dialog and indicator for this, even though Gearslip never reads the screen; that grant is the only way a non-privileged app can tap another app's audio. The consent normally repeats every drive; two optional adb commands in the setup guide reduce it to a one-time grant.
- Gearslip needs no adb, root, or Shizuku. Every feature relies on an ordinary Android permission or an on-device consent dialog. The two adb commands mentioned above, for audio, are the sole exception: both are optional, and both only remove a dialog that the driver would otherwise see once per drive.
Building
./gradlew :gearslip:assembleDebug
The APK lands at build/Gearslip-debug.apk.
A release build needs a signing key. Copy keystore.properties.example to
keystore.properties, fill in your own values, and run
./gradlew :gearslip:assembleRelease. Git ignores both the properties file and the
keystore. Without them, the debug build still works.
Writing apps for Gearslip
docs/BUILDING_APPS.md specifies how to write apps that Gearslip can render: templated apps, media apps, and the Gearslip app protocol.
License
Gearslip is licensed under AGPL-3.0; see LICENSE. The author offers a separate commercial license for private use outside the AGPL's terms; see NOTICE.md.