Carbs

Carbs is a homemade, vibe-coded Android diet diary. It tracks carb-cycling nutrition — HIGH/MEDIUM/LOW/PLAISIR day types with different carb targets — plus calorie deficit and macros, and logs food by photo: snap a plate, a shopping receipt, a barcode, or just describe the meal in plain language.

Four optional AI features (food parse, food vision, receipt scan, carb advice) run entirely on Mistral, with the exact prompts committed to the repo as source code. Unusually, the app also tracks and shows its own AI usage footprint — an estimate of the carbon and water cost of its AI calls, computed from real token counts, visible in Settings.

The author is a Linux/Kubernetes systems engineer, not a mobile developer, and says so in the README: "This app was built with Claude Code." The git history's commits are co-authored by "claude", the UI is bilingual French/English, and nutrition data comes from OpenFoodFacts and ANSES-CIQUAL. GPL-3.0, 62 commits and 20 releases, still being iterated.

(Note: a different project from the previously published CarbScan — different author, different app.)