Fitness and nutrition coaching app
FitYar
A fitness app with a conversational coach, personalized training programs, workout logging and nutrition tracking. I co-founded it and handle backend, infrastructure and GPT integration.
400+exercises with video, muscle groups, equipment and form guidance.
Context
What the system had to do
FitYar’s coach, Borzoo, turns a conversation about goals, experience and available equipment into a structured training program. Workout and nutrition tracking still need to work when the model is unavailable.
What I built
Decisions and delivery
- Integrated GPT models and designed the conversation flow, prompts and structured-output handling for personalized training programs.
- Kept the tracking data and workout execution independent of the model integration.
- Delivered workout execution with set, rep and weight logs and rest timers; calorie and macro tracking against a food library; and water and habit tracking.
- Built a library of more than 400 exercises with video, target muscles, equipment and form guidance.
- Own the backend, infrastructure and model integration, working alongside one frontend engineer.
Outcomes
Results and status
400+
exercises with video, muscle groups, equipment and form guidance.
—
Workout and nutrition tracking work independently of the model.



