Code for using "Steamworks Network/Facepunch" solution with "Unity Netcode For GameObjects/MLAPI"
Install first Unity Netcode For GameObjects
Then install Facepunch Transport Or Copy this git command and paste in Package Manager
Then you have wiki page for getting started
You need to assign SteamId to FacepunchTransport
private void HandleTransport(SteamId id) => NetworkManager.Singleton.GetComponent<FacepunchTransport>().targetSteamId = id;
By using callback from steam, you can send that information to FacepunchTransport
private void Start() => SteamFriends.OnGameLobbyJoinRequested += OnGameLobbyJoinRequested; // Add the callback
private void OnDestroy() => SteamFriends.OnGameLobbyJoinRequested -= OnGameLobbyJoinRequested; // Remove the callback
private void OnGameLobbyJoinRequested(Lobby lobby, SteamId id) => HandleTransport(id);
After you got the callbacks and also changing "targetSteamId" in FacepunchTransport, is pretty much the same stuff with Unity Netcode For GameObjects.
Highly recommend watching DapperDino's playlist over Unity Netcode For GameObjects
Link to Multiplayer Community Contributions
Link to Facepunch Transport for Netcode for GameObjects
Link to Facepunch Wiki Page
Link to Steamworks API
Link to DapperDino's playlist over Unity Netcode For GameObjects