To run JohnOS 9 SP6 Widescreen Edition: Step 1: Download the project at https://github.com/johnb-xp/JohnOS-Legacy/raw/master/sb3/JohnOS%209%20SP6%20Widescreen.sb3 Step 2: Go to E羊icques (https://sheeptester.github.io/scratch-gui/?width=640&height=360) or use TurboWarp (https://packager.turbowarp.org/) Step 3: Load the project Step 4: Press green flag, full screen, (or F11 and full screen) and enjoy!
This shows how modular JohnOS 9 SP6 is - it is fully compatible with a 16x9 aspect ratio Scratch mod with only a few changes in the code. Thanks to @windowscj for making me aware of E羊icques.
