Ask HN: Can you help me find an old essay on composition?

Hey team, There was this great blog post I remember, where the author talked about composition vs configuration for abstraction. He starts with abstracting a `button`, and then goes deeper: I think he said "what if we want to make a switch button". He then talked about how by creating composable bits, it lets the programmer break through and use different levels of abstraction. Does anyone remember the post I am talking about? I think the author was either a game designer or made stuff on windows. His blog looked old school. Would love to find this post — it’s one of my favorites and I wanted to share it with a few folks