This is a collection of systemd units and udev rules to automatically attach various HDMI CEC
dongles to Linux's CEC subsystem via the inputattach program.

These files are largely based on slightly modified versions of the files found on [Linux's admin
guide](https://www.kernel.org/doc/html/latest/admin-guide/media/cec.html). Small portions are taken
from the [Arch Wiki article](https://wiki.archlinux.org/title/HDMI-CEC) as well.

To set these up, run `make install reload`, which will install the relevant files and reload
systemd's and udev's configurations.