i don’t know react and want to jump into helix. Is there a gentle introduction or do i have to go learn react first?

any tutorial for react using hooks should apply well to helix. note that if you use other libraries (like reagent) you will still need to learn react concepts anyway

with that said, the documentation has basic tutorial for hooks https://github.com/lilactown/helix/blob/master/docs/hooks.md

you may want to first read the documentation on creating components, however. cf. https://github.com/lilactown/helix/blob/master/docs/creating-components.md#creating-components