Reads this site's hash salt, minting and persisting one the first time.
Idempotent by construction: a second call returns the stored value, so a remount keeps every
session and every unexpired one-time login link valid. That is the whole reason it is persisted
rather than derived per boot.
Reads this site's hash salt, minting and persisting one the first time.
Idempotent by construction: a second call returns the stored value, so a remount keeps every session and every unexpired one-time login link valid. That is the whole reason it is persisted rather than derived per boot.