Backup

External media

Since I switch OSes frequently¹ having a minimum-hassle filesystem for my external drives would be very convenient. exFAT² seems to me like the best solution. In fact, exFAT is the default FS for SD cards and USB flash drives with more than 32Gb. So perhaps, if have a large-ish USB pen or an external drive, chances are you don’t even need to reformat it.

Software

My software of choice for backups at the moment is Kopia³.

Workflow

Optimise PNGs

To optimise an entired folder of PNGs, you could use optipng. Install it on macOS using

$ brew install optipng

and then apply it recusively with

$ find . -name "*.png" -exec optipng -o7 {} \;