Privacy
There is very little to say here, which is the point.
This site
It sets no cookies, runs no analytics, and collects no personal data. Pages are static files; nothing is logged about you beyond whatever your own network and the host keep to serve a request at all.
When you click a free lab button, the page keeps one flag in your browser's local storage so it can offer the lab page on your next visit. It stays in your browser and is never sent anywhere.
Downloads and purchases
Lab downloads, the free lab included, are delivered by Gumroad, which collects your email address under its privacy policy. Checkout is handled by Gumroad too. Payment details are never seen by this site.
Adjacency Labs may email you about new labs, and you can unsubscribe from any message. Mail to support@adjacencylabs.dev is used only to answer the support request it was sent about.