Hacker News Reader

In fact I solved a similar issue in my JS reactive micro library in just 500 bytes: https://github.com/jbreckmckye/trkl

I was not aware of trkl. Well done! I wrote rmemo (Reactive Memo) which solves the same problems & is a similar size. Different semantics though.

And if you only need reactivity in the browser (not server side), VanJS is small & includes reactive primitives. https://vanjs.org/

That looks great! Thanks for sharing!