This is actually very useful. I've been spending the past few weeks working on a cross-platform, native dev assistant app like this written with GTK3 and Rust. It's been a really good exercise in designing meaningful GUIs and, well, usable code. I don't have anything to show right now, but when I get it to an MVP state I'll be sure to share it with everyone!
I'm curious to hear what things people want to see out of an app like this. What utilities are you constantly Googling for that you'd rather have on your desktop?