hyprsunset-overdrive

A simple program to enable/disable the blue light filter on Hyprland based on sunrise and sunset in Nairobi, Kenya.

Demo

hyrsunset-overdrive.mp4

Requirements

• Hyprland
• hyprsunset

Building

To build the program, you will need the Rust toolchain installed.

cargo build --release

Move the executable to a bin folder in your path.

mv target/release/hyprsunset-overdrive ~/.local/bin

Usage

Add the following to your Hyprland config file:

exec-once = ~/.local/bin/hyprsunset-overdrive

When the program is executed, it will run in the background and automatically enable the blue light filter in the evening and disable it in the morning.

Additionally, it will add a tray icon if your setup allows it. When you click the icon, it will show a menu with the following options:

• Turn on - Manually enable the blue light filter during the day.
• Turn off - Manually disable the blue light filter during the day.

This menu options will enable your to override the automatic behavior of the program. For example, you may be making some graphics or videos at night and may most likely require accurate colors, therefore you may want to disable the blue light filter.

Configuration

You can configure the program by editing it's config file found in ~/.config/hypr/hyprsunset-overdrive.toml. The default config is as follows:

temperature = 3000
# Coordinates for Nairobi, Kenya
latitude = -1.2921
longitude = 36.8219
# Altitude of Nairobi, Kenya in meters. You can set it as 0.
altitude = 1795

The temperature option sets the color temperature of the blue light filter. The latitude and longitude options set the location of the sunrise and sunset calculations.

The program will automatically enable the blue light filter when the sun is above the horizon and disable it when the sun is below the horizon.

Acknowledgments

This tool borrows some implementations from sunsetr. sunsetr is a great tool, as you can manually set the start and end times for the blue light filter.