When I first started learning photography, I used Aperture as my photo editor and management solution. But I was too dumb to use it right and accidentally deleted the only copy of many photos from the first years of my son’s life. Since then, I have been diligent, borderline fanatical, about having backup copies of family media and important files.

Determined to never repeat that mistake, I explored various tools for creating better backups. One of the most versatile tools I found is rsync, built right into macOS.