Third FoundationThat screenshot is from my iPad. I did not figure out how everything mouse-related works on an iPad. For example, for a while, I somehow got the mouse-button to be down all the time, so drag-and-drop couldn't do the "drop" action and moving the mouse was drawing selection rectangles all the time.
Option-Key acts like Command-Key, so I don't know how to type option-characters, which you have to do to type accented characters in the lessons.
It's better when you run this webpage on an actual Mac or another desktop machine.
And the emulated boot disk doesn't contain SimpleText or any other text editing app, so you can't open the ReadMe files. I don't think the hypercard stack can edited (as in editing the scripts or button/card layout or appearance.)