Man, this reminds me of the story about the person that gets a position at a new company and it turns out they have a ridiculous tech stack where it's a custom

Man, this reminds me of the story about the person that gets a position at a new company and it turns out they have a ridiculous tech stack where it's a custom language. The new person comes in and adds comments which breaks everything and somehow files have like a version history which affects how they run? Anyone have the link to that? There's some individual that developed all of it and gets the new person fired for breaking everything in production (because of course it all runs from head) and was portrayed very negatively.