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OpenLogi

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⚡️A native, local-first alternative to Logitech Options+, written in Rust 🦀 — remap buttons, DPI, and SmartShift over HID++. No account, no telemetry.

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> [!WARNING]
> **OpenLogi is under active development** and not yet stable — features and config may still change. Give the repo a **Star** ⭐ and **Watch** 👀 it to get notified when a new release lands.

<h1 align="center">OpenLogi</h1>
<p align="center"><strong>⚡️ A native, local-first alternative to Logitech Options+, written in Rust 🦀<br/>Remap buttons, DPI, and SmartShift over HID++. No account, no telemetry.</strong></p>

> **Options+ ? Try OpenLogi.**

Remap buttons, drive DPI and SmartShift, and switch profiles per app — without a Logitech account, telemetry, or the official Options+ install. No cloud, plain TOML config. By default, device-image fetches are the only automatic network calls; update checks and downloads run only when you request or opt into them.

---

## What it is

OpenLogi talks to Logitech HID++ peripherals over Logi Bolt and Unifying
receivers, Bluetooth-direct connections, or USB cables — without running Logi
Options+. It consists of three components:

- **[OpenLogi GUI](crates/openlogi-gui)** — a GPUI desktop app: an interactive mouse diagram with clickable hotspots, a per-button action picker (built-in actions plus custom keyboard shortcuts authored in the TOML config), DPI presets, SmartShift, per-device scroll inversion, RGB keyboard lighting, per-application profiles, a live device carousel, and a Settings window localized into 20 languages.
- **[OpenLogi agent](crates/openlogi-agent)** — the background service that owns the input hook and all device I/O. The GUI is a pure IPC client and starts the agent when needed.
- **[OpenLogi CLI](crates/openlogi-cli)** — a CLI for headless inventory (`list`) plus asset-sync and on-device diagnostic subcommands.

Everything stays local: bindings live in a plain TOML file, the agent remaps
button presses through the OS input hook, and writes DPI, SmartShift, scroll,
and lighting changes straight to the device over HID++.

macOS, Linux, and Windows are supported. Windows is the newest port: it has
been validated end-to-end on Windows 11 hardware, but may still have more rough
edges than the macOS and Linux builds; see [Roadmap](#roadmap).

## Beyond Options+

Things OpenLogi does that Options+ won't:

- **Run on Linux.** Options+ ships for macOS and Windows only. OpenLogi treats
  Linux as a first-class platform: evdev/uinput hook, udev rules, a systemd
  user unit, and `.deb` / `.rpm` / `.pkg.tar.zst` packages.
- **Put gestures on any button.** The dedicated Gesture Button, middle, back,
  and forward buttons can each have their own per-direction swipe bindings.
  Options+ pins gestures to the dedicated Gesture Button.
- **Keep config in plain text.** Everything is one TOML file you can read,
  diff, version-control, and copy between machines.
- **Script it.** A real CLI: device inventory, asset prefetch, and on-device
  HID++ diagnostics (feature/control dumps, DPI / SmartShift round-trips, and
  keyboard lighting checks).
- **Stay light.** Native Rust + GPUI binaries — no Electron suite, no resident
  updaters, no account, no telemetry.

## Roadmap

| Capability | State |
|---|---|
| Discover Bolt receivers + list paired devices (CLI + GUI) | ✅ |
| Unifying receivers (older protocol, replaced by Bolt) | ✅ |
| Bluetooth-direct / wired devices (no receiver) | ✅ |
| Battery percentage / charge state | ✅ (online devices) |
| Interactive GUI: carousel, mouse diagram, action picker | ✅ macOS + Linux + Windows |
| Button remapping via the OS input hook | ✅ macOS + Linux + Windows |
| Built-in action catalog + custom keyboard shortcuts (TOML-authored) | ✅ macOS + Linux + Windows¹ |
| DPI control + presets + Cycle / Set-preset actions (HID++ `0x2201`) | ✅ |
| SmartShift wheel: mode toggle + sensitivity + permanent-ratchet panel (HID++ `0x2111`) | ✅ |
| Per-device native scroll inversion (HID++ `0x2121`) | ✅ (supported devices) |
| Static RGB keyboard lighting (HID++ `0x8070` / `0x8080`) | ✅ (supported devices) |
| Per-application profile overlays (auto-switch on app focus) | ✅ macOS + Windows, 🟡 Linux (X11 / XWayland only) |
| Settings window: launch-at-login, updates, permissions, language, appearance | ✅ macOS + Linux + Windows |
| Agent status icon | ✅ macOS menu bar + Windows tray; not applicable on Linux |
| Interface localization (20 languages: da, de, el, en, es, fi, fr, it, ja, ko, nb, nl, pl, pt-BR, pt-PT, ru, sv, zh-CN, zh-HK, zh-TW) | ✅ |
| Linux packaging: udev rules, systemd unit, `.deb` / `.rpm` / `.pkg.tar.zst` | ✅ Linux |
| Gesture-button per-direction bindings + live capture | ✅ (device capability dependent) |
| Middle / mode-shift / thumbwheel button capture | ✅ middle on all platforms; mode-shift / thumbwheel device dependent |
| Windows (agent, GUI, event hook, installer) | ✅ Windows 11 hardware validated; newer port with ongoing compatibility polish |

Help improve the interface translations on [Crowdin](https://crowdin.com/project/openlogi).

¹ Media key actions use D-Bus MPRIS on Linux; a handful of macOS-specific actions have no universal Linux equivalent and are no-ops. Windows maps platform actions to native equivalents where available.

## Install

> [!IMPORTANT]
> Quit **Logi Options+** first — the two applications fight over HID++ access and only one can own a given receiver at a time.

### macOS

Requires macOS 13 or later.

Download the signed, notarized `.dmg` from the [latest release](https://github.com/AprilNEA/OpenLogi/releases/latest) and drag `OpenLogi.app` to `/Applications`.

Or install via [Homebrew](https://brew.sh):

```sh
brew install --cask openlogi
```

The official Homebrew cask is the default installation path. To explicitly
track the latest GitHub release from `aprilnea/tap` instead:

```sh
brew tap aprilnea/tap
brew install --cask aprilnea/tap/openlogi@latest
```

`openlogi@latest` is maintained by OpenLogi's release workflow and may update
before the official cask autobump lands. Install either `openlogi` or
`openlogi@latest`, not both.

### Linux

Download the package for your distribution from the
[latest release](https://github.com/AprilNEA/OpenLogi/releases/latest):

```sh
# Debian / Ubuntu
sudo dpkg -i openlogi_*.deb

# Fedora / RHEL
sudo rpm -i openlogi-*.rpm

# Arch Linux
sudo pacman -U openlogi-*.pkg.tar.zst
```

Packages are published for both `x86_64`/`amd64` and `arm64`/`aarch64`.

NixOS users can instead import the repository's module, which installs the
package and udev rules and starts the agent with the graphical session:

```nix
{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  inputs.openlogi = {
    url = "github:AprilNEA/OpenLogi";
    inputs.nixpkgs.follows = "nixpkgs";
  };

outputs = { nixpkgs, openlogi, ... }: {
    nixosConfigurations.my-host = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux"; # or aarch64-linux
      modules = [
        openlogi.nixosModules.default
        { programs.openlogi.enable = true; }
      ];
    };
  };
}
```

All Linux packages install udev rules that grant your user access to
`/dev/hidraw*`, `/dev/uinput` and your Logitech mouse's `/dev/input/event*`
node without `sudo`. The NixOS module starts the agent automatically; after a
`.deb`, `.rpm`, or `.pkg.tar.zst` installation, enable it for your user:

```sh
systemctl --user enable --now openlogi-agent.service
```

See [docs/INSTALL-linux.md](docs/INSTALL-linux.md) for complete NixOS options,
manual / source installs, and distros without systemd.

### Windows

Signed portable `.zip` archives and per-user `.msi` installers (x86_64 and
arm64) are attached to each release. Both ship the GUI (`OpenLogi.exe`)
together with the background agent (`openlogi-agent.exe`), which owns all
device I/O — keep the two files side by side when using the portable zip, or
the GUI has nothing to connect to.

Windows support works and has been validated end-to-end on Windows 11 with
real hardware — a wired keyboard and a Unifying-receiver mouse, including
install, in-place upgrade, and uninstall of the MSI. It is newer than the
macOS build, so if you hit a rough edge please
[report it](https://github.com/AprilNEA/OpenLogi/issues). The agent shows a
system-tray icon (Show Main Window / Quit) so the app stays reachable after
the main window is closed. To disable it on Windows, set
`show_in_menu_bar = false` in the TOML `[app_settings]` block and restart the
agent; the GUI toggle is currently macOS-only.

To build from source, see [DEVELOPMENT.md](docs/DEVELOPMENT.md).

## Usage (CLI)

See [USAGE.md](docs/USAGE.md)

## Configuration

See [CONFIGURATION.md](docs/CONFIGURATION.md)

## Developing

See [DEVELOPMENT.md](docs/DEVELOPMENT.md)

## Acknowledgments

- **Windows, cameras, and i18n** by [@davidbudnick](https://github.com/davidbudnick) — the Windows input hook and MSI updates, Logitech webcam support, keyboard RGB, and the Crowdin translation pipeline
- **Linux port** by [@cserby](https://github.com/cserby) — the evdev/uinput hook, D-Bus actions, .deb/.rpm packaging
- [Solaar](https://github.com/pwr-Solaar/Solaar) by [@pwr](https://github.com/pwr) — the most complete open-source HID++ implementation, and our protocol reference
- [Mouser](https://github.com/TomBadash/Mouser) by [@TomBadash](https://github.com/TomBadash) — prior art for a local, account-free Options+ replacement

## License

Dual-licensed under either of

- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE))
- MIT license ([LICENSE-MIT](LICENSE-MIT))

at your option.

### Third-party code

`crates/openlogi-hidpp` is a vendored fork of [`hidpp`](https://crates.io/crates/hidpp)
by [@lus](https://github.com/lus), licensed 0BSD.

### Logo & brand assets

The OpenLogi logo and app icon — the brand assets under [`design/`](design/) —
are © 2026 AprilNEA, all rights reserved, and are not covered by the MIT/Apache
licenses above; see [`design/LICENSE`](design/LICENSE). Forking the code grants
no right to the OpenLogi name, logo, or icon; please don't use them to represent
your own projects, forks, or distributions without prior written permission.

---

**Not affiliated with Logitech.** "Logitech", "MX Master", and "Options+" are trademarks of Logitech International S.A.

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