Does anyone have a guide to Traefik for an absolute idiot (myself)?

I was able to get a freshrss server running using dockercompose and was able to connect to it on my local network, but all the guides I read said I NEED to have a reverse proxy before I access it remotely.

This is probably my sign I need to actually learn how to use docker instead of being lazy as hell and copy/pasting code, but I thought I’d ask.