Integration with Gamelift

Hello everyone.
I am developing a multiplayer game using Nakama for backend, but using another framework for the gameserver (Mirror Networking).
The game will be hosted in Amazon GameLift so I would like to use its Matchmaking. I saw on other responses that it is possible but I could not find any more details or examples.

My question is: Is there some library or example I can use on my integration?
If not, is it ok to use the Gamelift Javascript Client on the Nakama Server?

Regards

Welcome @calamas. You could use Nakama server runtime code to extend your Nakama server. We also have docs on how to use 3rd party JavaScript libraries Nakama: TypeScript Runtime | Heroic Labs Documentation