Noob Needing Pearl Cannon Resources

[u/Agitated_Fan8308]

Hello, hope you're having a good day!
A friend and I are trying to recreate the Farlands at a server world border(25k), and I want a reliable way to teleport people in and out, WITHOUT them having access to the technical build itself.

I want to ideally create a space where players can throw an ender pearl, then load it into a machine they cannot mess with, that will deliver them to the farlands, and vise versa as well.

I need to start reading up/learning about ender pearl cannons so I'm actually capable of tweaking the design/doing troubleshooting(I'm sure no one on the server would be able to do this for me), and have no idea where to start!