So macOS Sierra introduced the ability to sync sort-of important folders like 'Desktop' and 'Documents' between machines.

Nice idea until I forgot that the default of a lot of programs is to set up your project in the Documents folder, and that the project I was checking out from git had two 20G files. Okay, the machine I was working with at home had plenty of disk space.

Turns out my machine at work did not, and happily synced itself out of disk space, which has been causing all sorts of no-not-fun-at-all busy work this morning.