[hdhrufjdi]

You are probably talking about rxjs, possible even ngrx.

I have become to love it.

However, it should be way simpler now with the upcoming Angular version that's supporting signals now.

[jansommer]

Yes, the rx in rxjs means Reactive Extensions. I think it's perfect for UI dev, but the steep learning curve excludes a lot of developers.

Signals look identical to React hooks.