| **Use case** | Platform vendor managing multiple customers | Single customer running the product directly |
Standalone mode generates a simpler compose with the server running directly. No Logto, no SaaS management plane, no bootstrap. The admin logs in with local credentials at `/`.
## Compose templates
The installer uses static docker-compose templates in `installer/templates/`. Templates are copied to the install directory and composed via `COMPOSE_FILE` in `.env`:
Both installers (`install.sh` and `install.ps1`) prompt for SMTP settings in SaaS mode when the user opts in ("Configure SMTP for email verification?"). SMTP is required for self-service sign-up — without it, only admin-created users can sign in.
Env vars: `SMTP_HOST`, `SMTP_PORT` (default 587), `SMTP_USER`, `SMTP_PASS`, `SMTP_FROM_EMAIL` (default `noreply@<PUBLIC_HOST>`). Passed to the `cameleer-logto` container. The bootstrap script (Phase 8b) discovers the SMTP connector factory and creates the connector with Cameleer-branded email templates.
CLI args: `--smtp-host`, `--smtp-port`, `--smtp-user`, `--smtp-pass`, `--smtp-from-email` (bash) / `-SmtpHost`, `-SmtpPort`, `-SmtpUser`, `-SmtpPass`, `-SmtpFromEmail` (PS1). Persisted in `cameleer.conf` for upgrades/reconfigure.