diff --git a/nice.py b/nice.py
index 5f9b495..006a1bd 100644
--- a/nice.py
+++ b/nice.py
@@ -1,5 +1,7 @@
 #!/usr/bin/env python3
 import asyncio
+import pynng
+#asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
 from collections import defaultdict
 from pathlib import Path
 
@@ -56,7 +58,7 @@ from starlette.middleware.base import BaseHTTPMiddleware
 #    ui.html("<h2>Uploader tool</h2>")
 #    ui.button('Choose file', on_click=pick_file, icon='folder')
 
-SOCKET_PATH = 'tcp://localhost:9975'
+SOCKET_PATH = 'tcp://localhost:9976'
 
 EXPORT_PATH = Path("./test/export")
 PROCESS_PATH = Path("./test/to_process")
@@ -83,7 +85,8 @@ DELETE_FILES_ON_UPLOAD = False
 rqst = None
 
 
-use_zmq = True
+use_zmq = False
+use_nng = True
 loaded_files: dict = {}
 loaded_series = defaultdict(list)
 loaded_series_data = {}
@@ -91,6 +94,7 @@ uploaded_files: dict = {}
 duplicate_series = set()
 
 
+
 if use_zmq:
     context = zmq.asyncio.Context()
     socket = context.socket(zmq.PULL)
@@ -138,6 +142,38 @@ if use_zmq:
                     case _:
                         logger.error("invalid message")
 
+if use_nng:
+        async def read_nng_messages():
+            print("start nng")
+            try:
+                with pynng.Pair0(listen=SOCKET_PATH) as sub:
+                    #sub.subscribe('')
+                    while not app.is_stopped:
+                        msg = await sub.arecv_msg()
+                        data = msg.bytes.decode()
+                        logger.debug(f'Received msg {data}')
+                        match data:
+                            case "loaded":
+                                for client in Client.instances.values():
+                                    if not client.has_socket_connection:
+                                        continue
+                                    with client:
+                                        ui.notify("Export done", color='positive')
+                                global REFRESH_TRIGGERED
+                                REFRESH_TRIGGERED = True
+                                logger.debug("loaded")
+                            case _:
+                                logger.error("invalid message")
+            except pynng.exceptions.AddressInUse:
+                logger.debug("Address in use")
+                with pynng.Pair0(dial=SOCKET_PATH) as sub:
+                    await sub.asend(b"loaded")
+                sys.exit(0)
+
+        #asyncio.create_task(read_nng_messages())
+
+
+
 anonymizer = Anonymizer(ANON_PATH)
 
 async def upload_files_start(progress, upload_queue):
@@ -547,6 +583,7 @@ def main_page():
 
     with ui.expansion('Extra', icon='build').classes('w-full'):
         ui.button("Load files", on_click=partial(load_files_start, anon_progress, queue))
+        ui.button("Load files from folder", on_click=partial(load_files_start, anon_progress, queue))
         ui.button("Reload anon", on_click=partial(reload_anonymized_start, anon_progress, queue))
 
     with ui.expansion('File status', icon='view_list').classes('w-full'):
@@ -583,6 +620,8 @@ if __name__ in {"__main__", "__mp_main__"}:
 
     if use_zmq:
         app.on_startup(read_loop)
+    if use_nng:
+        app.on_startup(read_nng_messages)
 
     ui.run(storage_secret="123456", reload=False, show=False)
 
diff --git a/test_nng.py b/test_nng.py
new file mode 100644
index 0000000..85063c1
--- /dev/null
+++ b/test_nng.py
@@ -0,0 +1,6 @@
+import pynng
+
+with pynng.Pair0(listen='tcp://127.0.0.1:54321') as s1:
+
+    with pynng.Pair0(listen='tcp://127.0.0.1:54321') as s2:
+        pass
\ No newline at end of file