[midenginedcoupe]

Pretty much all of it, really.

If you want their fancy windowing stuff, I think you also need to use their apps. Terminal, IDE, etc etc. Switching to a different terminal is friction, switching to a different IDE is a really big jump. My bet is most people aren't going to switch to a different IDE just to get different window management behaviours. And if the bundled IDE is brilliant, then you can't use that without this window management coming along for the ride too.

The differentiator for this project is the window management. Don't restrict that to just the re-implemented apps within the walled garden, and then you have the behaviour implemented in the right place.