The USB Equipment Commander is a lightweight daemon that is able to run commands based on the USB equipment connected to a computer. It makes it easily possible to run scripts and programs when specific USB devices are being connected or disconnected.

"Why, there's udev for that?!" you might say. Sure, but udev rules come with all sorts of limitations, making it very cumbersome to run especially Wayland-related commands. Often times, rules that trigger user-specific scripts and tools are hacky at best, given the constrains imposed by udev.

The daemon can be fully configured using a toml file.

go build .

Check out the example config and create a similar config under any of the usual configuration paths (/etc/usbec.toml, $XDG_CONFIG_HOME/usbec.toml, ./usbec.toml).

usbec

Examples include disabling the internal keyboard when you connect an external keyboard to your laptop, triggering a script that runs a backup on an external hard drive as soon as it's being connected, opening a LUKS encrypted device when a USB stick containing a key was inserted and much more.