Your question is interesting, and I see it as a learning for me. I did a couple of searches and the good ones seem to be based on Xorg. I’ll be watching the cavalry of knowledgeable forum members with there style of doing it.
I changed the keyboard shortcut commands to sudo systemctl start azire-up.service (now sudo), and added them as exceptions in visudo for my user name (I’m the only user anyway). New file in /etc/sudoers.d/ is better than modding sudoers directly with the content…`
Now I can use the shortcut keys without having to authorise, nice and simple and quick, no more typing out longish root command in the terminal.
I started by wanting to add a root command that I frequently run in a terminal as a keyboard shortcut, and ended up here. There must be a reason why a simple command isn’t allowed as a shortcut, and why systemctl is?
I don’t know if this is the only solution, though hope it might be useful for others to know as can be modified for other commands.