JetBrains UIs aren't web-based, unless this is an exception.

JetBrains tools are heavier and can take a few seconds to launch, but they also have some of the most responsive typing out there. They did some good work on zero-latency typing modes when that was a big topic and they were very good at typing latency relative to most editors.

They will never be the right tool for the personality type that gets angry when their IDE takes a few seconds to launch at the beginning of the day or when an application takes more than 1GB of RAM, but I am not that type of person so I enjoy them.

I think the TUI people are well served by vim or emacs and should just stay there and be happy.

The rest of your post feels like an injected ad for your project underneath a topic where it's not relevant

This post is about a TypeScript repo, which is what I commented on. It may as well be a necessity since Pi is using a JS runtime as well. It has nothing to do with JetBrains and everything to do with the codebase in the link.

It also has nothing to do with TUI vs. GUI, since my comment addressed both (anecdotally).

If anything, your mentioning of their performance work is exactly my point.