Zambretti on an ESP32: a weather forecaster from 1915

Implementing the classic barometric algorithm on a microcontroller — surprisingly accurate, delightfully analog.

What this post covers

This is placeholder body content for the EmDash + Astro build. Richard will rewrite it with the real write-up — code, photos, and the parts that actually broke.

Placeholder draft — not final copy. Seeded from blog-design.html to exercise the layout and Portable Text rendering.