sunsetr

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Automatic blue-light filter for Hyprland, Niri, and everything Wayland

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# sunsetr

<img src=".github/assets/logo.png" alt="sunsetr logo" width="144" />


 Automatic blue-light filter for Hyprland, Niri, and everything Wayland

<a href="https://psi4j.github.io/sunsetr/installation.html">Installation</a> | <a href="https://psi4j.github.io/sunsetr/quick-start.html">Quick Start</a> | <a href="https://psi4j.github.io/sunsetr/configuration/">Configuration</a> | <a href="https://psi4j.github.io/sunsetr/commands/">Commands</a>

![This image was taken using a shader to simulate the effect of sunsetr](https://raw.githubusercontent.com/psi4j/sunsetr/main/.github/assets/sunsetr.png)

Sunsetr is an automatic blue-light filter for Wayland compositors. It automates smooth color-temperature transitions from neutral to warmer tones, designed to reduce eye strain and improve sleep. Sunsetr automatically adjusts your displays based on your geolocation or a clock-based schedule. It can also be used to persist the same color-temperature and gamma indefinitely and can alternate between various user-defined presets. The controller can integrate with and automate changes in your shell or UI applications via IPC.

## Features

- **Multi-Compositor Support**: Works with Hyprland, Niri, Sway, River, Wayfire, and other Wayland compositors
- **Native Hyprland CTM Backend**: Direct Color Transformation Matrix support for Hyprland
- **Smarter hyprsunset Management**: Add longer, cleaner, and more precise sunset/sunrise transitions to hyprsunset (Hyprland)
- **Smooth Transitions**: Configurable fade effects with adaptive algorithm
- **Preset Management**: Quick switching between configuration profiles (e.g., day, gaming, weekend)
- **Hot Reloading**: Live updates when config files change
- **IPC for Automation**: Unix socket-based IPC for scripting and external integrations
- **Geolocation-based Transitions**: Automatic sunrise/sunset calculation based on your location
- **Interactive City Selection**: Choose from 10,000+ cities worldwide for precise coordinates
- **Automatic Timezone Detection**: Falls back to system timezone for location approximation
- **Universal Wayland Support**: Direct protocol communication on Wayland compositors
- **Smart Defaults**: Works beautifully out-of-the-box with carefully tuned settings
- **Flexible Configuration**: Extensive customization options for power users

## TODO

- [x] AUR packages available
- [x] Nix package and Nix flake available
- [x] crates.io package available
- [x] Implement gradual transitions
- [x] Multi-compositor Wayland support
- [x] Geolocation-based transitions
- [x] Implement Hyprland native CTM backend
- [x] Implement IPC for scripting and external integrations
- [ ] Fedora Copr package available
- [ ] Debian/Ubuntu package available

## 💛 Thanks

- to wlsunset, hyprsunset, and redshift for inspiration
- to the Hyprwm team for making Hyprland possible
- to the niri team for making the best Rust-based Wayland compositor
- to the Wayland community for the robust protocol ecosystem

sunsetr

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