Systems & AI · Web app · Offline-first · Open source

BODY OS

A body composition and performance system for an athlete: weight, nutrition, workouts, recovery and competition in one place, with a weekly report. Records work offline in IndexedDB and sync without duplicates. A database with 22 tables by domain and photos in private storage. With no AI provider configured, the interface declares basic mode and answers by rules.

Industry: Systems & AI
Deliverable: Web app · Offline-first
Status: Open source
Stack: React 19 · TypeScript · Cloudflare Workers · D1 / SQLite · Drizzle · Zod

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BODY OS assistant showing the notice "Basic mode · rules with your records" and suggestions based on the day’s data. — Assistant in basic, rule-based mode.

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