This is interesting and creative. Good job. The first thing that comes to mind for me is licensing. This is software. Normally when we think about software

This is interesting and creative. Good job. The first thing that comes to mind for me is licensing. This is software. Normally when we think about software on the web, we think about JavaScript---users will disable JavaScript or use LibreJS or something along those lines if they wish to avoid downloading these programs, or avoid using nonfree software. I can also imagine CSS compiler targets for these types of things, if they don't exist already. Something to think about in the coming years (or now).