Lightweight daemon for low battery notifications on GNU/Linux. Requires libudev and libnotify. Written in Zig.
nix develop # if using Nix
zig build -Drelease-safe
./zig-out/bin/batnotifyd
batnotifyd can run a command if the battery gets "dangerously low" (default is 2%, configure with --danger_threshold). It's highly recommended to set it to suspend, or hibernate if your system supports it:
./zig-out/bin/batnotifyd --danger_hook 'systemctl suspend'
A systemd --user unit file is included for convenience.
zig build
sudo install -m 755 ./zig-out/bin/batnotifyd /usr/local/bin/
install -Dm 644 batnotifyd.service -t ~/.config/systemd/user/
systemctl --user daemon-reload
systemctl --user enable --now batnotifyd