> a programming language that feels like ruby

CoffeeScript. Everything old is new again.

> just rerenders on each change

It is known from experience that this approach does not scale beyond toy examples and very simple websites. UX will begin to suffer from render lag somewhere around the UI complexity of an average webstore.

We use it for both backend and frontend of our site scrimba.com including the custom video format that renders each frame as dom. I think we have a non-toy amount of users. Example of a video: https://scrimba.com/scrim/czvKPPsw

And we are hiring if you want to work with the imba language:)

Everything rerenders there is no partial updates at all?

Everything rerenders from the root of the editor (that is - not the syntax highlighting of the code itself - as that is handled by monaco).

Yes, I've also had this experience with React. I've created several imba apps with more complex UI than an average webstore and still rerender from root without even being close to spending 16ms on a full rerender. It does work. https://www.freecodecamp.org/news/the-virtual-dom-is-slow-me...

My experience was not with React and I’m taking

> rerender from root under 16ms

with a huge grain of salt.