nextcompanion/README.md
Jonas Heinrich be742a2e43 update README for Linux GTK4 rewrite
Document the new Linux app with GTK4/libadwaita, installation
instructions for Flatpak and NixOS, and updated feature list.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-03-27 23:07:56 +01:00

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# NextCompanion
A minimal GTK4/libadwaita Nextbike client for Linux.
## Features
- Interactive map with bike station markers (Leaflet.js)
- Marker clustering for dense areas
- Rent and reserve bikes directly from the map
- Filter by bike type (All / Standard / E-bikes)
- View active rentals and reservations
- Return bikes with station number or electric lock
## Screenshots
*Coming soon*
## Installation
### Flatpak
```bash
# Build and install locally
flatpak-builder --user --install --force-clean build-dir org.nextbike.NextCompanion.yml
```
### NixOS / Nix
Run directly:
```bash
nix run github:onny/nextcompanion
```
Or add to your flake inputs:
```nix
{
inputs.nextcompanion.url = "github:onny/nextcompanion";
}
```
Then add to your packages:
```nix
environment.systemPackages = [ inputs.nextcompanion.packages.${system}.default ];
```
For development:
```bash
nix develop
cargo run
```
## Usage
1. Sign in with your Nextbike phone number and PIN
2. Browse the map to find bike stations
3. Click a station marker to see available bikes
4. Rent or reserve a bike with one tap
5. View your active rentals via the "Rentals" button
6. Return bikes by entering the station number
**Note:** Sign-up is not supported. Create an account via the Nextbike website or official app first.
## Privacy
This app does not track you or send telemetry. It only communicates with Nextbike API servers to perform bike operations.
## Requirements
- GTK4 4.x
- libadwaita 1.x
- WebKitGTK 6.0
## Building from source
```bash
# With Nix
nix build
# With Cargo (requires GTK4, libadwaita, WebKitGTK development packages)
cargo build --release
```
## Tested cities
NextCompanion uses the Nextbike API and should work in any supported city. Tested with:
- KVV.nextbike (Karlsruhe, Germany)
## Disclaimer
This is an unofficial client and is not affiliated with Nextbike GmbH.
## License
See [LICENSE](LICENSE) file.