I think the real answer is your own memory… I hope that doesn’t sound too ridiculous but yea trawling around any way you can think and remembering to some extent for later is the way to go… can add I was lucky to find this japanese wiki which is quite detailed if you could read it https://w.atwiki.jp/clickeridle, I also can say because you’d never know there are some being made in minecraft on the hypixel server’s housing feature, the archivism aspect of that is the concept for a nightmare for sure but if the idea of a mariomaker esque incremental engine in minecraft feels like a good artstyle to look at then go for it. as a say most of them get deleted so its only memories to me… oops for answering what are the most obscure sources you know but that is what makes sense to me to say