For me federation is working to mastodon, but I don’t think comments are really out yet, but I use cactus comments for it, but that doesn’t federate to mastodon, it federates to matrix. It also requires a matrix server, which was a total pita to set up.
I got it working with my 6800XT. I’m running deep seek r1 14b (somewhere around there) and the deep seek coder V2. I have a link to a blog with those instructions
https://gotosocial.michaeldileo.org/@mdileo/statuses/01JQA4M4Q33PMCADH9M2AWQSS8