Hello after long break!
Finally I'm back and I'll continue working on my project.
Project code got messy and it was harder and harder to add new things. After long thinking I decided that I'll rewrite whole code base and try to implement simple ECS framework (just for sake of maintainability and extensibility).
What You see on the video is effect of integrating server and client and loading player after receiving confirmation from the server. Sounds easy but under the hood there's quite advanced mechanism (hopefully not overengineered - will found out in the future).

Next on the backlog is player movement - for now without any client side prediction.