Gamelift with C#

Hello, i’m a bit confused over the gamelift api. I’m trying to get a server up and running using aws gamelift, and i’m using C# (not unity). I’ve downloaded the api using NuGet, which says it’s unity optional. However with that api, i only see Amazon.Gamelift namespace, which isn’t documented anywhere?

The api that i’m supposed to use, Aws.GameLift.Server seems obsolete? I could obtain the api if i download it via the web link in the documentation, however, NuGet gamelift api got updated a few days ago, so i’m not sure what’s the latest version or even the difference.

https://docs.aws.amazon.com/gamelift/latest/developerguide/gamelift-sdk-server-api.html

So the api’s are apparently not the same?

(reference https://forums.awsgametech.com/t/how-to-add-player-to-server-work-flow-using-gamelift-unity-c/3786/1 )