Unity Bootstrapping

    public static class BootstrapApplication
    {
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
        public static void Initialize()
        {
            var gameManagers = Resources.Load<GameManagers>(GAMEMANAGERS);
            var instance = Object.Instantiate(gameManagers);
            instance.name = GAMEMANAGERS;
            Object.DontDestroyOnLoad(instance);

        }
        const string GAMEMANAGERS = "GameManagers";
    }