You are not wrong. SMC is open source, the code is here:
Besides that, I've already installed this ivisual locally in a project and it works. I think it would be nice to have it everywhere. I'm just not sure how to do it properly, because it also depends on some other packages that aren't mentioned and the associated websites aren't really helpful.
I didn't understand the install instructions for vpython, or if it is even possible to run it on SMC. Do vpython and ivisual depend on each other?
-- harald