get the last piece of my hardware dependence off...my 20 year old DAC
The $9 Apple DAC is unironically good. I can confirm it is plug-and-play with Mint.
Edit: To be clear, it is good if you just need an audio output (the core feature of a DAC). If you want crazy DAC features, it clearly isn't it.
"that breaks speed limits" can be ok.
I have seen a number of US interstates posted at 55mph, when traffic moves at 70-80mph. Being stuck at 55mph on those interstates is dangerous.