Privacy Policy

Matrix Builder is an open-source project. We keep data collection to the minimum needed to run the service, and we never sell your data.

What we collect

• Account: your email, and (if you use Google) your name and profile photo.
• Your work: the ideas you describe and the Matrix Bundles you generate.
• Basic logs: standard request/error logs to operate and secure the service.

How we use it

Only to provide the service: authenticate you, save and show your bundles, send account emails (verification, password reset), and keep things secure. That’s it.

Where it lives (sub-processors)

• Google — “Sign in with Google” (only if you choose it).
• Resend — sends account emails.
• Aiven (PostgreSQL) — stores your account and bundles.
• Hugging Face / Vercel — host the application.

Storage in your browser

A sign-in token is stored in your browser’s localStorage to keep you signed in. We don’t use advertising or tracking cookies.

Security

Passwords are hashed (PBKDF2-HMAC-SHA256, never plain text), connections use TLS, and per-user row-level security isolates each user’s data in the database.

Your choices

• Want your account and data deleted? Email contact@ruslanmv.com.
• Prefer full control? Matrix Builder is open source — self-host it and own your data end to end.

Changes & contact

We may update this policy; material changes are reflected in the “last updated” date. Contact contact@ruslanmv.com · GitHub.