Your Dev Tools Are Why Your Mac is Full. Here's How to Reclaim 50-100GB

Last year I got a new MacBook Pro. 512GB SSD. I figured that was plenty — I'm not storing raw video footage or anything. I write code. Four months later, macOS told me I was running low on disk space. I opened System Settings > Storage and stared at the breakdown. "Developer" was the single largest category, bigger than my music library, photos, and documents combined. But macOS doesn't tell you what in that category is eating the space. It just shows you a gray bar and shrugs. So I started digg