Dev builds open-source Apple Watch cycling app with $1 of tokens, no servers
oran_ge · x · 2026-09-30
- Developer orange shares a cycling app called Coucou Bike built with roughly $1 worth of LLM tokens, claiming it beats many professional cycling apps and is now part of every ride.
- Core features: an Apple Watch voice co-pilot that calls out per-kilometer splits, warns when pace drops, and offers a playful recap; audio mixing so music/podcasts keep playing; fallback prompts for weak indoor/tunnel GPS.
- Ride logs: merges data from watch and phone, 1000km maintenance reminders, daily/weekly/monthly bar charts, GitHub-style cycling heat calendar, rolling averages, one-click Markdown export.
- Principles: pure-black OLED power saving, native iPhone location and motion coprocessor, zero servers and accounts, all data local with full export, permanently ad-free, open source for non-commercial self-hosting.
- A representative one-person AI-era dev story: tiny budget, polished niche tool, open source with data sovereignty.
Related event: Developer builds cycling app with just $1 of AI tokens, open-sources it(2 posts)→
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