Per-user RepeaterBook 'rbuapp_' API token. Required: every export needs an approved token, and the server refuses to start without it. No application registration needed - log in to your RepeaterBook account, open https://www.repeaterbook.com/user/api_apps.php, find 'RepeaterBook Python Client' (App #114), and generate a token for it. Secret.
REPEATERBOOK_WORKING_DIR
No
Where the SQLite database and HTTP cache live. Created if missing; a leading '~' is expanded.
REPEATERBOOK_APP_CONTACT
No
Contact address used in the API User-Agent. Leave unset: it defaults to the address registered for App #114, and any other value returns 403 ua_mismatch. Set it only if you registered your own separate application with RepeaterBook.