Environment reference
=====================

.. list-table::
   :header-rows: 1

   * - Variable
     - Purpose
   * - ``PORT``
     - HTTP listener port; default ``8090``.
   * - ``DB_USER`` / ``DB_PASS``
     - Database credentials.
   * - ``DB_IP``
     - Database host and port.
   * - ``DB_NAME``
     - Database name.
   * - ``APP_URL``
     - Base URL for email links.
   * - ``SMTP_*``
     - SMTP connection and sender settings.