It's easy, press the F12 key when the loading screen or the project itself is running, then press the arrow beside the "index.html" folder. There are multiple folders in that folder. So press the arrows until it leads you to a resource by the same name as the first folder, index.html, right-click it, and it leads you to a website with JUST the project. Press Ctrl + S, then change the filetype to HTML only, then download it. use a site called Turbowarp Unpackager to turn it to .sb3 and open it in PenguinMod.
