My 2 cents-
M1 Mac Mini (Dedicated) + Qobuz + Audirvana Studio + Gustard R26 = Nirvana!!!
The improvement over the MAC audio engine with Audirvana Studio is the best bargain upgrade I can recommend.
I just got the ML Unison and plan on evaluating it this weekend. Another low cost opportunity for an upgrade.
The comment above about Linux w/Intel I7 is what my 2012 MAC mini was. 10 years strong I just got the itch to upgrade.
S-