Yes, I would like this as well. I did find a form that works: https://v6p9d9t4.ssl.hwcdn.net:443/html/3045893/WebGLBuildDynaDraw/index.html?dy...
But this would be better https://scotthuskey.itch.io/3d-dyna-draw?dynastring=Irrrrrrff&dynatitle=Smiley
The Share button in my App allows people to share their creations with a URL copied to the text clipboard that contains the Base URL of the app and the single letter command string that contains their drawing commands.
My workaround looses the itch.io wrapping - so I do not like it.
How can I pass some parameters into my App via the itch.io url??