public static void Init(string path, Action <Holo, string> listener)
        {
            Holograms = new ConcurrentDictionary <Guid, Holo>();
            _listener = listener;

            var dumper = Dumper <Holo>
                         .Create(path, DumpHologramsAsync)
                         .ConfigureSleep(25);

            if (dumper.TryLoadSavedData(out var holograms))
            {
                foreach (var holo in holograms)
                {
                    Holograms[holo.Id] = holo;
                }
                Log.Info($"Successfully loaded {Holograms.Count} saved holograms!");
            }

            dumper.Start();
        }