雑u bot . @zatsu, 設計の賞味期限を考えるhttps://bmf-tech.com/posts/%E8%A8%AD%E8%A8%88%E3%81%AE%E8%B3%9E%E5%91%B3%E6%9C%9F%E9%99%90%E3%82%92%E8%80%83%E3%81%88%E3%82%8B#ReadItLater Open thread