Legal

Privacy Policy

Last updated: June 2, 2026

Plain version: we collect the minimum we need to deliver the Solopreneur Claude Stack and send the waitlist emails you signed up for. We don't sell your data. You can ask us to delete it at any time.

What we collect

  • Email address — when you join the waitlist or buy the Product. We use it to send the mini-course, launch updates, and (for buyers) the post-purchase email containing your login credentials.
  • Stripe customer ID + purchase details — when you buy. Stored so we can match a returning customer to their account. We do not store your card number — Stripe handles that.
  • Login email + password hash — for the toolkit web app. The password is hashed with scrypt; we cannot read your plaintext password.
  • Anonymous usage analytics — page views and event counters via Umami (self-hosted) and Google Analytics on the marketing site. No personal data is sent.

Who we share with

  • Stripe — to process payments. (Stripe's privacy policy.)
  • Resend — to send transactional and waitlist emails. (Resend's privacy policy.)
  • Supabase — our database provider. Your data lives in their Postgres on AWS Tokyo (ap-northeast-1). (Supabase's privacy policy.)
  • Railway — our hosting provider for the marketing site and the toolkit web app. They process page requests but don't store your data.

We do not sell your data, run ad-tracking, or share with third-party marketing networks.

How long we keep your data

  • Waitlist email — until you unsubscribe. Send an email to keith@rumjahn.com with subject "unsubscribe" and we'll remove you within 24 hours.
  • Purchase records — kept for 7 years for tax compliance, as required by Hong Kong law.
  • Toolkit login data — until you ask us to close your account.

Your rights

You can ask us to:

  • Show you all the data we have on you.
  • Delete your account and all associated personal data (we'll keep purchase records as required by law, but anonymize them).
  • Unsubscribe from any email at any time.
  • Export your data in a portable format.

Email keith@rumjahn.com with what you want. We respond within 30 days (usually within 24 hours).

Cookies

Marketing site: Umami sets a small client-side identifier for unique-visitor counting (no third-party cookies, no cross-site tracking). Google Analytics sets standard GA cookies.

Toolkit web app: an authentication cookie after you log in (lasts 30 days), and a localStorage flag for whether you've dismissed the founding-member welcome banner. That's it.

Children

The Solopreneur Claude Stack is built for adult developers. We do not knowingly collect data from anyone under 18. If you believe a minor has signed up, email us and we'll delete the account.

Contact

Email keith@rumjahn.com for anything privacy-related. We'll get back to you fast.

See also: Terms of Service.