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// support

support & contact

last updated: March 2026

01 — how to reach us

For any questions, issues, or feedback regarding the book or your purchase, please contact us directly at me@zeybek.dev. We aim to respond to all inquiries within 24–48 hours on business days.

02 — what we can help with

We provide support for the following:

  • ›Access & download issues — problems accessing your PDF/EPUB files or GitHub repository after purchase
  • ›Payment & billing questions — invoice requests, payment confirmation, or checkout issues (payments are processed by Lemon Squeezy as Merchant of Record)
  • ›Technical questions — questions about the book content, code examples, or PostgreSQL/AI topics covered in the book
  • ›Errata & corrections — reporting typos, errors, or outdated information in the book
  • ›Licensing questions — team/bulk licensing, permitted use, or redistribution inquiries

03 — billing disputes

If you have a billing dispute or need to resolve a payment issue, you can contact Lemon Squeezy directly through their support channels. As the Merchant of Record, they handle all payment processing and can assist with transaction-related inquiries. You can also reach us at me@zeybek.dev.

04 — book updates

Your purchase includes all future updates to the current edition. When updates are available, you will be notified and can download the latest version through your original purchase link. If you have trouble accessing an update, contact us and we will help you get the latest version.

05 — reporting issues

When contacting us about an issue, please include the following information to help us resolve it quickly:

  • 1.Your email address used at purchase or Lemon Squeezy order number
  • 2.A clear description of the issue you are experiencing
  • 3.Any relevant screenshots or error messages

06 — connect with the author

You can also find and connect with the author through these channels: