Linux

Better out-of-the-box text-to-speech voices would be very welcome. The defaults are pretty painfully robotic... (Try spd-say "Hello world" if you don't know what I mean.)

Trivial to use on-device dictation software could also be useful.

The capabilities of models like qwen3.6 to do things like on-device image analysis are pretty incredible if you have hardware capable of running it -- I've run it on a Framework Desktop -- but I have no desire to expose my systems directly to AI agents. That's just asking for trouble... If an AI agent can fuck up, it will fuck up eventually, and I'd rather it not have the ability to delete my files when it does.