Phoenix Lens is a mountable SQL notebook for Phoenix apps. Point it at your Ecto Repo, save questions, pin dashboards, and mask PII/PHI. Not Metabase. A PgHero-shaped tool you mount at /lens so you stop giving a sidecar dashboard a god-mode DB user. Optional DuckDB joins, MCP endpoint for agents, email/webhook alerts, and extra TOTP/passkey lock. Open source. Free. Just use it if you need it. GitHub: https://github.com/oivoodoo/phoe... Hex: https://hex.pm/packages/phoenix_...