It's also confusing... I mean, what does "non-production use" mean anyway? Does it mean "non-commercial use"? Or "testing/debug/staging environment"? Or "does not produce any valuable output"...?
According to this article https://perens.com/2017/02/14/bsl-1-1/ about the Business Source License, the intention conveyed by the word "production" for that license is use "in any capacity that is meant to make money".
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.
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.
But companies can still experiment with it without paying. IE, you can integrate it and run benchmarks to see if it would actually help your pain points.