The underscore is annoying since it's not very common for exes and
packages to have underscores in them. It was a mistake from the start.

The cmdline options used here aren't supported right now, and there's no
need to retry/kill the service because it's not saving data on exit
anymore

Can't 'provide' a real service, and having a pidfile is mandatory for
services that use command_background=true

The retry= gives a long enough timeout from sending TERM for the app
to save data from the gps before quitting. Without this, openrc defaults
to sending KILL 5 seconds after TERM