Free: copy the whole ~/.recall/ directory. Pro: export from the cloud API when you want a portable dump.
That folder is your vault. Soft-capped local files include commands.json (~500), groups.json (~50), templates.json (~50), snippets.json (~50), env.json (~50), and aliases.json (~100). Keep a copy somewhere safe (disk, private git, encrypted drive).
JSON keeps names and tags. The shell dump is readable if you want to skim it.
Free has no cloud backup. Pro sync keeps a cloud copy in addition to the local folder — see plans.