I made a website that can modify itself (yes using llms) and its pretty hilarious the things you can get it to do. It was inspired by my friend jeremy who made https://jeremy46231.github.io/tater/ last winter.
It uses a self built agent / tool calling system that keeps breaking (maybe it wasnt the smartest decision lol) and whatever llm is the cheapest atm so typically it can get a bit confused. It's good enough to have a bit of a laugh though. You can also save and load versions of the site through the menus at the bottom or shortcuts. (i know that its broken but don't really plan to pour more than the 3 hours i already have into this; this was primarily created to scratch an itch and have fun with my friends)
Hopefully someone else finds it funny too!
Code is open source under MIT at https://github.com/taciturnaxolotl/plastic