How do I get a fixed ngrok server address

Hey everyone! I’m new to RocketChat and pretty new to Linux.

I just got RocketChat setup on a Pi 4 using these instructions.

I accidentally unplugged the Pi and when I booted it up I discovered that I have a different https tunnel after restarting Ngrok. Being new to all of this I don’t even know where to begin figuring out how (if it’s even possible) to get and keep the same tunnel.

Any help would be greatly appreciated!

After stumbling across some more reading I new realize that the free version of Ngrok only provides randomly generated URL’s. Now I’m trying to figure out which Ngrok paid plan I need. What I’m unclear on is what a “user” means to Ngrok. Is each one of my employees using RocketChat a user?