Shipped a tide and swell app for my local surf club

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Tide, swell and wind for one beach, nothing else.

Every surf app I tried wanted a subscription and showed me forty spots I will never visit. This one covers a single beach and loads in under a second on a phone with two bars of signal.

I used Claude Code for the React Native side and wrote the forecast parsing by hand, because the marine data format is odd enough that I wanted to understand every line. The honest bit: the first build drained the battery because I polled the forecast every thirty seconds. It now refreshes twice an hour.