Why can't my community be found from other Lemmy instances?
I try to view my community hosted on https://sopuli.xyz from any other instance like lemmy.ml, lemmy.world, lemmy.one, etc and all I get is 404: couldnt_find_community. Does my community need to meet some requirements first?
Searching for it in the search bar from within your instance is usually enough (the very first time it may not work show up as everything gets synced). If you want to ensure it shows up on every instance than yes you will need to make an account on every single instance and follow. Generally though, as more people start subscribing and searching; this will naturally happen.