Obligatory reference to the Moonpig billing system, and Mark Dominus' excellent deep-dive article on its design: > Sometimes I see other people fuck up a proje

Obligatory reference to the Moonpig billing system, and Mark Dominus' excellent deep-dive article on its design: > Sometimes I see other people fuck up a project over and over, and I say “I could do that better”, and then I get a chance to try, and I discover it was a lot harder than I thought, I realize that those people who tried before are not as stupid as as I believed. That did not happen this time. Moonpig is a really good billing system. It is not that hard to get right. Those other guys really were as stupid as I thought they were. https://blog.plover.com/prog/Moonpig.html https://blog.plover.com/prog/Moonpig.html