Can't find anything outside of self hosted instance

Hi,

Im trying to self host lemmy with docker. Everything seems to have set up correctly. However I can't find other communities, users or posts from my server. I can't see any errors in the logs and when i run curl -H "Accept: application/activity+json" https://lemmy.emphisia.nl/u/youpie it gives a correct response. The server is lemmy.emphisia.nl and it is running behind a reverse nginx proxy. Using the config found in the ansible playbook (because i couldn't find it anywhere else)