Sometimes remove non existing apps automatically

main.py

@@ -2,6 +2,7 @@
 import config
 import subprocess
 import os
+import os.path
 import serial
 import threading
 import json
@@ -325,6 +326,13 @@ for app in config.Apps:
     if "guiname" not in app.keys():
         app["guiname"] = app["name"]
 
+#remove unavalible apps
+for app in config.Apps:
+    cmd = app["cmd"]
+    if type(cmd) == str and not os.path.isfile(cmd):
+        config.Apps.remove(app)
+        logging.warning("Removed app "+app["name"])
+
 runner = AppRunner()
 runner.start()