The Living Chart
Seamark Studio — the first seamark.studio
Thirty-eight routes prerendered from one imported route table, with the honesty contract enforced by the build itself — it fails if anything claims shipped work without a named proof.

One persistent map camera served as the page's spine — idle orbit, eased flights between authored frames, and a flight queue so a fast scroll never stacked animations. The tide line was a live NOAA gauge, cosine-interpolated between predictions, conditions came from the National Weather Service, and the night sky drew real stars — with a build check asserting Polaris sat at the observer's latitude, an invariant a wrong projection cannot fake. Its verifier measured text contrast at live camera positions, and its perf budget failed the build if the map engine leaked onto map-free routes.
- A persistent map camera with idle orbit, eased flights, and flight queueing
- Live NOAA tide + NWS conditions through key-free serverless functions
- Real star positions, with Polaris asserted at the observer's latitude
- 38 routes prerendered from the same modules the app renders
- Contrast verified at live camera positions, per route