There's a lot that could be said on both the topics in this comments.
I've started a new thread to discuss Mac-specific problems with Trisquel here:
https://trisquel.info/en/forum/getting-trisquel-8-working-macs I've also started a new thread on the user respect issues with Etcher here: https://trisquel.info/en/forum/user-respect-issues-etcher
