Thanks that allowed me to clear up about 20GB! Also sudo ncdu allowed me to find a 72gb [long string of characterless]-json.log file and many 1gb+ files in /var/lib/docker/overlay2. I’m not sure what to do with this information or if it’s safe to delete but at least I’m getting somewhere.

Actually running sudo ncdu allowed me to find a 72gb [long string of characterless]-json.log file in /var/lib/docker/containers and many 1gb+ files in /var/lib/docker/overlay2. I’m not sure what to do with this information (or what’s safe to delete) but I’m getting somewhere.