[williamstein]

What I want to know is: "can I add Codon to a site like https://cocalc.com that I host as long as users of Codon explicitly agree to only use it in a way that is compatible with the license?" I have absolutely no idea if that would be allowed by the rules or not.

[unsafecast]

I think that's supposed to apply to you, not your users. My understanding is that you pay if you make money using it. I can definitely see how you can easily interpret it in many other ways though.