Well you can just have an up to date Linux system, that can be as bloated or bloatless as you want. It may take away some battery life and cause some thermal issues because of how Apple designs their products though, but you can probably fix that with some fiddling.
Really if you have the know-how, you can configure Linux any way you want.
In my case, I have a Mac Mini Server 2011 but I use it to listen to music in HiFi. I haven't received my DAC yet, but when it comes, perhaps I will swap to a linux distro. Sound in macOS is soooo well made.