Migrate
snage migrate updates your .snage.yaml to the current
config format and saves it in place.
$ snage migrate
Migrated /home/me/project/.snage.yaml.
Snage still reads configs in an older format, it converts them on the fly
every time it starts. Run snage migrate once to update the file itself, e.g.
before you use options that only exist in the current format.
Tip
Commit your config before you migrate it, so you can review the changes
with git diff.