How I built a tool that actually proves your backups work before you need them

body: Every developer has a backup script. Almost nobody verifies that the backup actually restores. I learned this the hard way. Not in a production emergency — but close enough to make me uncomfortable. The script ran, the file was there, the cron job was green. Everything looked fine. Until I tried to restore it in a test environment and it failed silently. That's the Schrödinger's backup problem: you don't know if your backup works until you open the box. And most people open the box during