is there no way to search for posts within a community or am I just stupid?

There is an open issue for this: Implement in-app searching of all content, not just communities https://github.com/dessalines/jerboa/issues/27

Yes this isnt possible yet and i dont think there is an open issue for this yet either.

You are not stupid.

Haven't found a way either with Jerboa and Connect. Not t sure if it's possible at the moment.

Yup the site doesn't have it either, i know everything is super early but it's a weird that the feature doesn't exist yet m

The web-ui has it in the search page. Select "posts" from the type drop-down, and select the community in the community filter.

Jerboa only has community search, it doesn't support searching any other types.

The web-ui search result aren't amazing, but you can filter there in the way you're asking.

This app (I haven't tried myself yet) shows search in the screenshots: https://github.com/liftoff-app/liftoff