Make the "peers" into actual peers #2
Description
Currently the peers are only a client-server system, that is fine in theory, but usually most homes consists of a dynamic IP address, making this more complex, not only we need to keep track of the changing IP address, but we also need to do hole punching which is known for it's complexity.
Possible solution
Make the gateway server into a router, basically the peer won't need to serve, it will receive the command from the gateway that it needs to establish a connection.
Peer 1 -> Gateway -> Peer 2
instead of Peer 1 -> Peer 2
again because neither peer 1 or peer 2 may not be able to serve directly, using the gateway is a nice alternative, ALSO NOTE: the connection between Peer 1 and Peer 2 is end-to-end encrypted thus the gateway will only know which peer to send it to