I used something like that for a while but I didn’t really use the keypad side in practice and the quality of that remote was kinda crap so the most used buttons quickly became unreliable. Also I don’t find the airmouse all that convenient to use.

I replaced it with one of these plus I also have a perfectly normal keyboard and mouse connected to that mini-PC in case I need to directly use it (which is rare since even the homeserver stuff I normally do remotely from a normal Desktop PC via SSH).