Privacy, briefly and honestly.

What is collected. If you subscribe to the newsletter, your email address — nothing else. Standard web analytics run in aggregate (pages viewed, referrers); no advertising trackers, no data sold to anyone.

Email. Double opt-in; every email carries a one-click unsubscribe. Your address is used to send you the newsletter and for no other purpose.

Client material. Articles on this site draw on real implementation work. Company names, people, and commercially identifying details are anonymized; clients approve what is published about their systems.

Contact. Questions about any of this: hello@houkongfan.net.