Yes, I should probably have implemented it in Haskell, at least. But seriously, the language to choose was definitely a question. I was considering JavaScript

Yes, I should probably have implemented it in Haskell, at least. But seriously, the language to choose was definitely a question. I was considering JavaScript instead, to make this more accessible (to virtually every web developer). But I found server-side to be more effective than client-side. You could argue that the JavaScript module could have been used in Node.js, but then you're back at Node.js vs PHP, where PHP can be regarded at least as accessible. Anyway, since this makes use of the most primitive and basic language features only, a later rewrite would be trivial.