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SwellSlots

Show HN: SwellSlots – Grid Based Surf Forecast App with a Street Fighter 2 UI

35 AI Score
Show_hn other Added Apr 7, 2026

Details

Sector
other
Total Funding
$0
Last Round
$0

About

I discovered surfing last year in my early 40&#x27;s its been a journey and a half and more fun than taking up golf at my age.<p>SwellSlots squeezes swell height, period, wind speed&#x2F;direction, and tide state into a color-coded weekly grid. One glance tells you when conditions are &#x27;good&#x27; for the next few days.<p>I wanted it to look completely different to what was out there (UI wise), as most of the forecast apps looks very clinical and cold.<p>Some technical details:<p>- SvelteKit + TailwindCSS 4, deployed on Hetzner (LOVE their cloud-console-ux! So simple)<p>- 2,000+ surf spots worldwide (sourced via a separate AI-assisted pipeline I call &quot;Surf Scout&quot; — got ~80% accuracy, rest is manual curation)<p>- The spot database was its own challenge — Google Maps couldn&#x27;t distinguish surf beaches from swim beaches, and LLMs got about 75–80% of the way there<p>I&#x27;d really appreciate feedback on:<p>- Is the grid scannable enough on first visit?<p>- Any surf spots missing from your area?<p>- What else would you like to see?<p>EDIT - Formatting

AI Score Reasoning

SwellSlots is a creative, UI-driven niche tool that differentiates itself through aesthetic and scannability in a market dominated by clinical incumbents like Surfline. However, it currently lacks a significant technical moat, proprietary data (cameras/sensors), or the traction signals required for venture-scale investment.

Source

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