

Mastodon, not my cup of tea (to be fair, neither was Twitter). I just don’t find micro-blogging to be very engaging and my mind categorizes it as “brain rot”.
Sharkey? Haven’t heard of that one until I just googled it, but one look at their mascot and…no. Just… no.
Have been looking at joining Piefed instance, though.






https://github.com/marytts/marytts
I’ve used MaryTTS semi-recently. It’s older but works well enough for my cases. I have it running on a server (locally) and my endpoints make a call to it and playback the returned audio file.
On Android, I use SherpaTTS which has good voices, but I’m not aware of a desktop/Linux option. It mentions using voices from Coqui which you linked, so I would guess that would be the way to go for desktop.