The idea
What if every GitHub developer had a stock price?
Not a vanity metric. A real price — calculated from your
actual activity. Followers, stars, repos, and most
importantly: what you shipped THIS week.
That's GitBull.
How the price works
Every developer gets a price based on two things:
BASE — your standing:
- Total followers
- Total stars across all repos
- Number of public repos
MOMENTUM — what you did this week:
- New commits
- New stars gained
- New followers
Ship more code = price goes up 🟢
Go quiet = price drifts down 🔴
Prices update every Monday via a weekly cron job.
What I built in 4 days
- FastAPI backend with GitHub GraphQL API
- 10,000 developers pre-populated in Firebase
- Flutter Web frontend
- 3D candlestick market in Three.js (10k devs rendered live)
- Buy/sell with virtual points, portfolio, leaderboard
- Weekly cron that refreshes all dev prices
- Share your price card to Twitter/LinkedIn
The interesting part — week 1 data
After the first Monday cron ran, some devs jumped massively:
- DietrichGebert: $38,627 ▲4427% (was shipping hard)
- Matt Pocock: $19,448 ▲3235%
- Torvalds: $3,003 ▲334%
The formula actually works — active devs rise, quiet ones fall.
Tech stack
- Backend: FastAPI + Firebase Firestore
@github @buildinpublic @webdev
