The Lab

What I'm building, learning and sharing.

Short, dated notes from real work: experiments, lessons and build notes. I came to software from 16+ years in hotel operations; this is where you can see how I work today.

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Lesson Build notes

Build notes
A double opt-in signup without a CAPTCHA
How the Lab signup checks addresses without a CAPTCHA: a hidden honeypot, a per-IP limit, a signed 48-hour link and a confirm button instead of a confirm link.
Issue #2 · 13 Oct 2026 · 5 min read

A double opt-in signup without a CAPTCHA