Comment by dinfinity

Another vote for Lit here.

JS frameworks were invented to deal with clunkiness of Vanilla Javascript and got bloated to include everything and the kitchen sink. All of a sudden they're 'ecosystems'.

Modern JS + Web components with the light layer of Lit on top solve at least 80% of the issues there were and are with just plain JS. Close to actual web standards and thus play nice with almost everything. By design they fit into a far more modular approach than React or Vue or Svelte.