An AI coach for a 200 km gravel race
Apple Health and WHOOP data, one-word skills, and hard rules he set himself, all pointed at Traka 200.


Learn to build with your Garmin, Strava, and WHOOP data alongside 1,200+ athletes. Start with the free 7-Day Challenge. No coding background needed.





Apple Health
Oura
TrainingPeaks
Apple Health
Oura
TrainingPeaksStart with the free 7-Day Challenge, then keep going with the daily breakdowns, prompts, and tools I and other members share.
Runners, triathletes, cyclists, and lifters, plus the tech people who love building for them. Share what you're making, get real feedback, and team up on builds.
New wearables, model releases, and the tools actually worth your time, broken down as they land so you never have to chase the news yourself.
Community challenges like Most Miles in a Month, where the whole group trains and competes together.

All of this came out of the free 7-Day Challenge. Straight from the community feed.
Apple Health and WHOOP data, one-word skills, and hard rules he set himself, all pointed at Traka 200.

Added recovery and nutrition coaches, then automated Withings, Garmin, a recovery call, and a nutrition plan into one morning task.

Finished all seven days, then rebuilt it on Vercel and Supabase with AI planning, daily check-ins, and weekly reviews.

His coach pulls similar workouts from a year back and watches for real patterns in his training.

Race readiness, her training plan, and fuel targets, built while coming back from hip surgery.

A thank-you to the whole community after building his Athlete OS from the free tutorial.










The 7-Day Challenge gets you an AI coach of your own. Labs is where you build the app you always wanted. Four weeks from an idea to a real fitness app on your phone, built next to me and a room of athletes doing the same.
Idea to a real app on your phone. Mobile or web. Every step is a prompt you run, in order.
Strava, Apple Health, Health Connect, WHOOP. Your app runs on the data your watch already collects.
A room of athletes, coaches and fitness pros building their own apps. Trade feedback, test each other's builds, and see what's working.
You finish with a real app on your own phone. Use it in training, hand it to your friends, and keep making it better.
How it runs, the tools, and exactly what you ship.
What an app actually is, your stack, and Claude Code set up. Ends with hello world on your own phone.
Cut your idea to one loop you can ship, validate it with real people, and write the plan the build runs from.
Every screen drawn before it's built, and a design system that makes it look like a real product.
The core. Auth, data, your core loop, and real fitness data from Strava and the health stores.
Your domain goes live, your app goes onto real phones, payments switch on, and you submit it.
For when you want other people using it. Get your app in front of other athletes.
Seven days, one short lesson a day, and you finish with your own Athlete OS.




