The *gasket-driver* container installs the `gasket` and `apex` kernel
modules, which provide the driver for the Google Coral EdgeTPU AI
accellerator module. The container image must be built ahead of time,
of course, and contains modules built for a specific Fedora kernel
version.
The udev rule has two purposes: to set the permissions on the device
node so that any user on the system can access it, and to "tag" the
device so that systemd will generate a `.device` unit for it. The
latter allows other units (e.g. Frigate) to express a `Requires=` and
`After=` dependency on the device unit, so that they do not start until
the driver is loaded.
Dustin