Your data - Keel

Everything lives in ~/.keel/keel.db, one SQLite file. Move Keel’s folder with KEEL_HOME, or point at another database with KEEL_DB_URL. See environment.
Keel writes a full JSON backup to ~/.keel/backups/ the first time you use it each day, and keeps the last 14. Change that with KEEL_BACKUP_KEEP (0 turns it off).

Export and import

keel export > keel-backup.json     # everything, as JSON
keel export --md > keel.md         # a readable snapshot of every client, project and commitment
keel import keel-backup.json       # restore into an empty database

Import only fills an empty database, so nothing is ever overwritten. It writes everything in one step: a bad file saves nothing.

Scripts

Add --json to any command for output that scripts can read. See JSON output.