Ah looks like I won’t be able to finish this game! I may pick it up in the future. It was fun leaning some unity networking basics. The following helped me in my (incomplete) journey
RPC https://docs-multiplayer.unity3d.com/docs/advanced-topics/message-system/execution-table
video walkthrough https://www.youtube.com/watch?v=rFCFMkzFaog
scripts https://github.com/dilmerv/UnityMultiplayerPlayground/tree/master/Assets/Scripts