FlaxEngine/Source/ThirdParty/nethost/FlaxEngine.CSharp.runtimeconfig.json

{
  "runtimeOptions": {
    "tfm": "net8.0",
    "framework": {
      "name": "Microsoft.NETCore.App",
      "version": "8.0.0",
      "rollForward": "latestMajor"
    }
  }
}