how do i find my friend's server on garrysmod multiplayer?

the other day my friend and I were trying to go on a garrysmod server together but he couldnt find the server i made in any of the lists. How do we find each other’s servers?

Can’t you go into friends list and join game?

Or open server list and go under friends tab.

if you just made a server in game, it won’t show up on any internet or lan lists. You need to either make a listen server (run it off your computer) or a dedicated server (buy or rent an actual server)

It’ll show up on the LAN list if you are actually on a LAN. But I assume you’re not.

how do i do that?