A while ago, I auditioned about 10 different STT apps on my Mac, with this realtime/streaming transcription as a goal. I failed to find that feature in an app I was happy with, but settled on Handy as the best option otherwise. So if Handy adds this, it will be perfect!
It may be easier than expected in some way since we already emit events for the live overlay, so it could be as small as a function call, but I don’t know the code path well enough from memory and what complexities it has. Probably with the Tauri context and a bit of other mess we have as this bit of code has gone through a lot of pain