diff --git a/.venv/pyvenv.cfg b/.venv/pyvenv.cfg
index 8f51041..9e93342 100644
--- a/.venv/pyvenv.cfg
+++ b/.venv/pyvenv.cfg
@@ -2,4 +2,4 @@ home = /usr/bin
 include-system-site-packages = false
 version = 3.12.3
 executable = /usr/bin/python3.12
-command = /usr/bin/python3 -m venv /mnt/Daten/repos/HomeDashboard/.venv
+command = /mnt/Daten/repos/HomeDashboard/.venv/bin/python3 -m venv /mnt/Daten/repos/HomeDashboard/.venv
diff --git a/READ ME b/READ ME
new file mode 100644
index 0000000..f431f09
--- /dev/null
+++ b/READ ME	
@@ -0,0 +1,2 @@
+source .venv/bin/activate                                                         17:37:58
+python3 main.py
diff --git a/__pycache__/gui.cpython-312.pyc b/__pycache__/gui.cpython-312.pyc
new file mode 100644
index 0000000..3d93bde
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diff --git a/__pycache__/gui_dashboard.cpython-312.pyc b/__pycache__/gui_dashboard.cpython-312.pyc
new file mode 100644
index 0000000..8b78d31
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diff --git a/gui/__pycache__/gui_dashboard.cpython-312.pyc b/gui/__pycache__/gui_dashboard.cpython-312.pyc
new file mode 100644
index 0000000..944181a
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diff --git a/gui/__pycache__/styles.cpython-312.pyc b/gui/__pycache__/styles.cpython-312.pyc
new file mode 100644
index 0000000..ee80473
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diff --git a/gui/gui_dashboard.py b/gui/gui_dashboard.py
new file mode 100644
index 0000000..320ccb1
--- /dev/null
+++ b/gui/gui_dashboard.py
@@ -0,0 +1,44 @@
+from nicegui import ui
+from gui.styles import STYLES
+
+site = 1
+
+@ui.refreshable
+def content ():
+  match site:
+      case (1):
+        ui.label("Startseite. Willkommen!").classes(STYLES["h2"])
+      case (2):
+        ui.label("Energie und Verbrauch").classes(STYLES["h2"])
+      case (3):
+        ui.label("Heizung").classes(STYLES["h2"])
+      case (4):      
+        ui.label("Homelab").classes(STYLES["h2"])
+  
+
+def create_ui():
+  ui.page_title("Haus Dashboard")
+  with ui.row().classes("w-full justify-between"):
+    ui.label("Haus Dashboard").classes(STYLES["header"])
+    ui.switch('Light Mode').bind_value(ui.dark_mode(True))
+    
+  with ui.card().classes("w-full"):
+    ui.label("Navigation").classes(STYLES["h1"])
+    with ui.row().classes('w-full justify-between'):
+        ui.button('Startseite', on_click=lambda: ui_site_changer(1))
+        ui.button('Energie', on_click=lambda: ui_site_changer(2))
+        ui.button('Heizung', on_click=lambda: ui_site_changer(3))
+        ui.button('Homelab', on_click=lambda: ui_site_changer(4))
+  with ui.card().classes("w-full"):
+    content()    
+
+def run_ui():
+    ui.run(host='0.0.0.0', port=8080)
+
+#Wechsel den int von site je nach Button der gedrückt wurde.
+def ui_site_changer(i: int):
+    global site
+    site = i
+    content.refresh()      # UI-Bereich neu bauen 【1】
+
+
diff --git a/gui/styles.py b/gui/styles.py
new file mode 100644
index 0000000..23cfda8
--- /dev/null
+++ b/gui/styles.py
@@ -0,0 +1,9 @@
+# styles.py
+STYLES = {
+    'header': 'text-4xl font-bold text-blue-600',
+    'h1': 'text-2xl font-bold text-blue-600',
+    'h2': 'text-1xl font-bold text-blue-600',
+    'text': 'text-base text-slate-800',
+    'hint': 'text-sm text-slate-500 italic',
+    'error': 'text-sm text-red-600 font-medium',
+}
diff --git a/main.py b/main.py
index 5f9e19d..18cd8c1 100644
--- a/main.py
+++ b/main.py
@@ -1,4 +1,20 @@
-from nicegui import ui
+from multiprocessing import Process
+from gui.gui_dashboard import create_ui, run_ui
+import time
 
-ui.label('Hello NiceGUI on Mint')
-ui.run()
\ No newline at end of file
+def worker():
+    while True:
+        #print('worker alive')
+        time.sleep(2)
+
+def start_server():
+    create_ui()
+    run_ui() 
+
+if __name__ == '__main__':
+    # nur hier Worker starten
+    Process(target=worker, daemon=True).start()
+    start_server()
+elif __name__ == '__mp_main__':
+    # NiceGUI/Reload/Multiprocessing-Serverprozess: nur Server starten
+    start_server()
diff --git a/workers/ping_worker.py b/workers/ping_worker.py
new file mode 100644
index 0000000..e31fa75
--- /dev/null
+++ b/workers/ping_worker.py
@@ -0,0 +1,6 @@
+import time
+
+def ping_loop():
+    while True:
+        # hier später echte Arbeit
+        time.sleep(5)