short rant: one thing I dislike about these ActivityPub links is that given it is parsed as an email, you cannot click it.
Plus, I have no idea how this “email” translates to the actual URL I am supposed to use.
WebFinger technially uses a `acct:` URI protocol scheme, but this wouldn't work here. Lemmy writes community refs with a `!` prefix, which is somewhat unusual.
In general with the fediverse you go to the domain after the @ and over there use the search box to find the part preceding the @. In this case that leads me to https://lemmy.world/c/selfhosted
WebFinger technially uses a `acct:` URI protocol scheme, but this wouldn't work here. Lemmy writes community refs with a `!` prefix, which is somewhat unusual.