半年前に AI と一緒に書いたコードを、自分でメンテできなくなった話 (opens in new tab)

Last week I opened a project I had built almost a year ago. Not because of a bug. A friend mentioned wanting a self-hosted Slack alternative, and I remembered I had made one. So I opened the folder in VS Code, looked at the file tree, picked the file that seemed like a sensible starting point, and opened it. Five minutes later, I closed it. I had written this code myself. And I could not tell what it did. What I had built Over the spring and summer of 2025, I built a Slack-style team communic...