diff --git a/internal_filesystem/apps/com.micropythonos.nostr/assets/nostr_client.py b/internal_filesystem/apps/com.micropythonos.nostr/assets/nostr_client.py
index ac30d323..51ad7ff0 100644
--- a/internal_filesystem/apps/com.micropythonos.nostr/assets/nostr_client.py
+++ b/internal_filesystem/apps/com.micropythonos.nostr/assets/nostr_client.py
@@ -86,11 +86,18 @@ class NostrClient():
             self.subscription_id = "micropython_nostr_" + str(round(time.time()))
             print(f"DEBUG: Setting up subscription with ID: {self.subscription_id}")
             
+            # Convert npub to hex if needed
+            follow_npub_hex = self.follow_npub
+            if self.follow_npub.startswith("npub1"):
+                from nostr.key import PublicKey
+                follow_npub_hex = PublicKey.from_npub(self.follow_npub).hex()
+                print(f"DEBUG: Converted npub to hex: {follow_npub_hex}")
+            
             # Create filter for events from follow_npub
             # Note: Some relays don't support filtering by both kinds and authors
             # So we just filter by authors
             self.filters = Filters([Filter(
-                authors=[self.follow_npub],
+                authors=[follow_npub_hex],
             )])
             print(f"DEBUG: Subscription filters: {self.filters.to_json_array()}")
             self.relay_manager.add_subscription(self.subscription_id, self.filters)
diff --git a/tests/test_multi_websocket_with_bad_ones.py b/tests/test_multi_websocket_with_bad_ones.py
new file mode 100644
index 00000000..d2cc0cca
--- /dev/null
+++ b/tests/test_multi_websocket_with_bad_ones.py
@@ -0,0 +1,144 @@
+import unittest
+import _thread
+import time
+
+from mpos import App, PackageManager
+import mpos.apps
+
+from websocket import WebSocketApp
+
+
+# demo_multiple_ws.py
+import asyncio
+import aiohttp
+from aiohttp import WSMsgType
+import logging
+import sys
+from typing import List
+
+
+
+# ----------------------------------------------------------------------
+# Logging
+# ----------------------------------------------------------------------
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s [%(levelname)s] %(message)s",
+    stream=sys.stdout,
+)
+log = logging.getLogger(__name__)
+
+
+class TestTwoWebsockets(unittest.TestCase):
+
+    # ----------------------------------------------------------------------
+    # Configuration
+    # ----------------------------------------------------------------------
+    # Change these to point to a real echo / chat server you control.
+    WS_URLS = [
+        "wss://echo.websocket.org",          # public echo service (may be down)
+        "wss://echo.websAcket.org",          # duplicate on purpose – shows concurrency
+        "wss://echo.websUcket.org",
+        # add more URLs here…
+    ]
+    
+    nr_connected = 0
+    
+    # How many messages each connection should send before closing gracefully
+    MESSAGES_PER_CONNECTION = 2
+    STOP_AFTER = 10
+    
+    # ----------------------------------------------------------------------
+    # One connection worker
+    # ----------------------------------------------------------------------
+    async def ws_worker(self, session: aiohttp.ClientSession, url: str, idx: int) -> None:
+        """
+        Handles a single WebSocket connection:
+        * sends a few messages,
+        * echoes back everything it receives,
+        * closes when the remote end says "close" or after MESSAGES_PER_CONNECTION.
+        """
+        try:
+            async with session.ws_connect(url) as ws:
+                log.info(f"[{idx}] Connected to {url}")
+                self.nr_connected += 1
+    
+                # ------------------------------------------------------------------
+                # 1. Send a few starter messages
+                # ------------------------------------------------------------------
+                for i in range(self.MESSAGES_PER_CONNECTION):
+                    payload = f"Hello from client #{idx} – msg {i+1}"
+                    await ws.send_str(payload)
+                    log.info(f"[{idx}] → {payload}")
+    
+                    # give the server a moment to reply
+                    await asyncio.sleep(0.5)
+    
+                # ------------------------------------------------------------------
+                # 2. Echo-loop – react to incoming messages
+                # ------------------------------------------------------------------
+                msgcounter = 0
+                async for msg in ws:
+                    msgcounter += 1
+                    if msgcounter > self.STOP_AFTER:
+                        print("Max reached, stopping...")
+                        await ws.close()
+                        break
+                    if msg.type == WSMsgType.TEXT:
+                        data: str = msg.data
+                        log.info(f"[{idx}] ← {data}")
+    
+                        # Echo back (with a suffix)
+                        reply = data + " / answer"
+                        await ws.send_str(reply)
+                        log.info(f"[{idx}] → {reply}")
+    
+                        # Close if server asks us to
+                        if data.strip().lower() == "close cmd":
+                            log.info(f"[{idx}] Server asked to close → closing")
+                            await ws.close()
+                            break
+    
+                    elif msg.type in (WSMsgType.CLOSE, WSMsgType.CLOSING, WSMsgType.CLOSED):
+                        log.info(f"[{idx}] Connection closed by remote")
+                        break
+    
+                    elif msg.type == WSMsgType.ERROR:
+                        log.error(f"[{idx}] WebSocket error: {ws.exception()}")
+                        break
+    
+        except asyncio.CancelledError:
+            log.info(f"[{idx}] Task cancelled")
+            raise
+        except Exception as exc:
+            log.exception(f"[{idx}] Unexpected error on {url}: {exc}")
+        finally:
+            log.info(f"[{idx}] Worker finished for {url}")
+    
+    # ----------------------------------------------------------------------
+    # Main entry point – creates a single ClientSession + many tasks
+    # ----------------------------------------------------------------------
+    async def main(self) -> None:
+        async with aiohttp.ClientSession() as session:
+            # Create one task per URL (they all run concurrently)
+            tasks = [
+                asyncio.create_task(self.ws_worker(session, url, idx))
+                for idx, url in enumerate(self.WS_URLS)
+            ]
+    
+            log.info(f"Starting {len(tasks)} concurrent WebSocket connections…")
+            # Wait for *all* of them to finish (or be cancelled)
+            await asyncio.gather(*tasks, return_exceptions=True)
+            log.info(f"All tasks stopped successfully!")
+            self.assertTrue(self.nr_connected, len(self.WS_URLS))
+
+    def newthread(self):
+        asyncio.run(self.main())
+
+    def test_it(self):
+        _thread.stack_size(mpos.apps.good_stack_size())
+        _thread.start_new_thread(self.newthread, ())
+        time.sleep(10)
+
+
+