Please help with the basics of subscribing to remote communities. (Many ways to do it wrong, included)

Alright I really thought I had cracked this nut, but some of these are still eluding me. I went on a run of subscribing to a bunch of remote communities and felt like I had really mastered the fediverse in theory and in execution... then I was humbled.

I'm guessing that the remote communities I've already subscribed to went very smoothly because somebody on kbin already did the hard work of finding them and subscribing, and I was unknowingly riding on their coattails.

The small community I'm trying to join is lemmy.world/c/pennsylvania. So far I've tried:

1. Pointing my browser to kbin.social/m/[email protected]

   • 404
   • I assume this is because kbin is so far, unaware of this community

2. Pointing my browser to kbin.social/c/[email protected]

   • I was pretty sure this wouldn't work, but I've been wrong about things I was pretty sure about, before.

3. Pointing my browser to kbin.social/c/[email protected]

   • I recently learned that kbin is unintentionally picky about capitalization in some cases. When I learned this, I REALLY thought I found the answer to my problem.

4. Click the magnifying glass, search for https://lemmy.world/c/pennsylvania

5. Click the magnifying class, search for https://lemmy.world/c/Pennsylvania

6. Click the magnifying glass, search for !pennsylvania

   • I really thought this would work because I thought the ! is how you tell your instance to seriously go out and get something, even if it has never heard of it before. (is that just for lemmy?)

7. Click the magnifying glass, search for !Pennsylvania

I am defeated.