Thanks for playing! Dedicated servers are something for the future definitely. But I am using a relay server right now already so anybody can play with anyone, anywhere in the world, already!
To play together, one person has to hit host on their computer
This makes a lobby that others can join from their computer by going to lobbies and joining the lobby(might need to refresh a few times for it to appear)
If there are any problems joining, just restart the game on both ends (this is a rare occurrence though)
As I'm writing, I am beginning to realise I should have written these as instructions within the game or in the description, so sorry about how unclear it was 😅
Really great to hear that the both of you enjoyed it, hopefully you can have more fun playing together with this!