Being honest, that doesn't sound too enticing.

Despite VSCode being an Electron app, I've never had any performance issues with it - really, it's a great example of how Electron can be done right.

On collaboration, I'm not sure what they might add that isn't already covered by GitHub/GitLab/AzDo etc. Again being honest, "collaboration" sounds like a weak Open Source pitch to VCs. I'd be interested in some details though, incase there is something truly novel here.

I think that's a worthy goal. I find it really bad that in this age of super-mega CPUs apps still feel not much faster than say 20 years ago. The reason I think is because like cities apps are built on top of other apps, like VSCode on top of Electron.

Secondly when you re-create from scratch you can keep the best features and drop the ones we've learned are not so useful.

Godspeed!