The short, honest version.
FLAT·SIX is a free, open-source hobby project — not a company, not a product, and not affiliated with Porsche AG. There is no business here, so there is not much to hide behind. This page says plainly what happens to your data and the terms under which you use the app.
Privacy
This project is run by an individual as open-source software. It is not a commercial service, and your data is never sold, rented, shared for advertising, or used to train anything. There are no ad networks and no third-party analytics or tracking pixels.
What is stored
To sign in, the app stores your email address, used only to send the magic sign-in link and to identify your account. If you choose to use the app, it stores the data you enter: your vehicle details and your service records (dates, mileage, parts, costs and notes). That is the entire scope.
Where it is stored
Accounts and your records live in a Supabase (PostgreSQL) database, protected by row-level security so each account can only read and write its own rows. Supabase processes this data on the project owner’s behalf as a hosting provider. Reference data — component diagrams, part numbers and torque specs — is static and shared by everyone; it is not personal data.
Claude / MCP
If you connect your garage to Claude over MCP, requests run with your approval and can read and write the same records you can. Nothing is sent to an AI model unless you initiate it. The project owner does not pipe your data into any model in the background.
Cookies
The only cookies set are the session cookies required to keep you signed in. There are no marketing or tracking cookies.
Your control
Your records belong to you. You can edit or delete them at any time from within the app, and you can request deletion of your account and all associated data. Because the project is open source, you are also free to run your own copy and keep everything entirely on infrastructure you control.
Terms of use
It’s a hobby project, provided as-is
FLAT·SIX is provided free of charge, “as is” and “as available”, without warranty of any kind. There is no service-level agreement, no guarantee of uptime, and the project may change or shut down at any time. Use it at your own risk.
Not professional advice
Part numbers, torque values, intervals, diagrams and fault-finding guidance are provided for reference and convenience only. They may be incomplete, out of date, or wrong. Always confirm against the official Porsche workshop documentation and a qualified technician before working on a vehicle. You are responsible for any work you carry out and for your own safety.
Not affiliated with Porsche
This is an independent, unofficial project. “Porsche”, “Boxster”, “Cayman”, model names and any trademarks are the property of Dr. Ing. h.c. F. Porsche AG. FLAT·SIX is not endorsed by, sponsored by, or affiliated with Porsche AG in any way.
Your content
You keep ownership of the records you enter. You are responsible for what you store and for having the right to store it. Please don’t use the app to break the law or to store other people’s personal data without their consent.
Liability
To the maximum extent permitted by law, the project and its maintainer(s) are not liable for any damages, loss of data, vehicle damage, injury, or other harm arising from use of the app or reliance on its information.
Open source
FLAT·SIX is open-source software and is governed by the terms of the licence published in its repository. If anything in that licence conflicts with this page, the licence prevails for the source code itself.