[Klonoar]

These projects are admirable, but people severely underestimate just how much work goes into building a true GUI solution. The insane amount of stuff required to wrap is bonkers-level crazy - you cannot easily match the millions of developer hours poured into the APIs used by MSFT/Apple/Linux, or the sheer complexity of a web browser.

You hands-down could not build Slack, Spotify and so forth in a solution like this. You would end up refactoring it very quickly when users start walking away because you can't have a feature they want (playing video, gifs, etc).