[1.15] Synchronize inventories of all players in server

Hi there,

I’m fairly new to modding with Forge, and I want to create a mod that synchronizes every player’s inventories so that every player shares the same inventory.

I did some research and I believe the best way to do this would be to make a container on the server and use Container.detectAndSendChanges() to send a packet whenever a player’s inventory gets updated. I see that Container.detectAndSendChanges() sends the packet to all Container listeners, but how do I create a ContainerListener on the server?