Someone asked about making regions locked so you need an item in your possession to enter. It sounded interesting, so I made a plugin to do that.
I built it under 1.19, but it likely will work on older versions. I just didn't test it yet. I'll update later when I do get around to testing.
It's 1:30 AM and I'm exhausted, so if you catch any bugs that slipped by my tired eyes just post in the discussion tab for the plugin
See the documentation tab for instructions on use. For a video tutorial, see: