There is an updated pull request by mamins1376 against master on the void-packages repository https://github.com/mamins1376/void-packages brightnessctl-runit-store https://github.com/void-linux/void-packages/pull/12974 Add brightnessctl service to {,re}store screen brightness Thought it would be nice to have this in the original package. A patch file from https://github.com/void-linux/void-packages/pull/12974.patch is attached