Just a heads up, in case anyone runs into the same problem I did.

If your server doesn’t block or limit bsky.brid.gy, AND if your account is set to automatically accept new followers, BUT when you try to follow @bsky.brid.gy@bsky.brid.gy the button changes to say “Cancel Follow” instead of “Unfollow” THEN go ahead and click Cancel Follow and wait a few minutes before clicking “Follow” again.

It took me a couple of attempts, but it eventually worked.