I recently have made two similar but different threads, in my garage I’ve made the decision to go the Raspberry Pi route: Cheapest/easiest Roon setup for garage - #6 by igor_b
For my desktop setup, still not sure. I will be using my tablet for now, but it’s a bit fiddly of a setup to get everything set up. Would be nice to have a better dedicated setup.
My Grado SR325 certainly do not need an amplifier…