diff --git a/Setup-Computer-Debian-12.md b/Setup-Computer-Debian-12.md
index aa9e07b..482adc9 100644
--- a/Setup-Computer-Debian-12.md
+++ b/Setup-Computer-Debian-12.md
@@ -144,4 +144,17 @@ make    # for the config files
 cd ../../PixelatorGUI/config/
 make
 
+```
+
+- test Pixelator
+```
+# run Controller in 1st Terminal
+cd ~/work/stxm/build/PixelatorController
+./src/PixelatorController-bin config/settingsNoHardware.json
+
+# run GUI in 2nd Terminal
+cd ~/work/stxm/build/PixelatorGUI
+./scripts/PixelatorGUI-nH # -nH for no Hardware uses Ports 56561 and 56562
+./src/PixelatorController-bin config/settingsNoHardware.json
+
 ```
\ No newline at end of file