Level 3: Add taxiway
Add level 4
Level 5

Add Actor per request pattern to ensure message delivery
Initialize remote app from infra/player
Separation between Client/Server/Messages

Add remote management of player
Multiple users is almost done

Missing: filtering events to see only events related to the current user
Add multiplayer feature

Need to avoir a user to register if the hostname is already registered
Add checks to prevent two users on the same hostname or the same mail
Add lister per player
 Correct some typo on specs
Change AckMaxTimeout and fix some typos
Introduce State Machine into plane state management

Improve event stream mechanisms
Register error message