Every line of code is a point of light.
Codex Stellarum turns your GitHub history into a vintage star atlas.
@karpathy · 3 years · 6,402 contributions
Atlases shown are generated from publicly available GitHub data for demonstration purposes. Codex Stellarum is not affiliated with or endorsed by the developers shown.
This started with a single print, made for one person.
The story
April 2026. I wanted to give a friend of mine something for years of late-night commits - so I made her a print of her GitHub history.
Her boyfriend - who had no idea what GitHub was - took one look and said:‘Where are we hanging that?’
That was the moment I knew. Read the full story →
Built at Keope Labs Ltd, a London-based software portfolio.
Chronicle
Year by year, band by band. Like geological strata made of starlight.
Planisphere
A circular star map. Months orbit the circumference like hours on a clock.
Helix
A continuous spiral unwinding through time. Your most organic, most beautiful layout.
The Green Squares
GitHub gives you a contribution graph. A year of your life compressed into a grid of green squares. Hover over one and you'll see "4 contributions on March 15th." That's it. No context. No craft. No beauty.
But those squares represent something real. Late nights debugging a production outage. Sunday mornings building something just because you were curious. The quiet discipline of showing up, day after day, and writing code that works.
That deserves better than a tooltip.
Charted Among the Stars
Astronomers have been mapping the sky for centuries. Their star atlases are some of the most beautiful scientific documents ever created - hand-engraved copper plates, Latin inscriptions, every star precisely placed by magnitude and position.
We thought: what if your code looked like that?
Every day becomes a star. Bright days burn hot - large, luminous. Quiet days are faint points in the dark. Streaks become constellations. Gaps become the void between them. The result is a map of your work that looks like it belongs in a museum, not on a dashboard.
Museum-Quality Printing
Every atlas is printed using Giclée technique - the same process used by galleries and museums worldwide. Archival pigment inks on heavyweight 200gsm matte art paper. No fading, no gloss, no compromise.
Your print is produced by a Fine Art Trade Guild approved printer and shipped directly to your door in protective packaging. Each one is rendered at 300 DPI - that's over 100 million pixels for our largest prints.
We don't keep stock. Every atlas is generated, rendered, and printed to order. Yours is the only copy in the world with exactly that pattern of stars.
No Two Skies Are the Same
Every atlas is unique. Not as a marketing line - as a mathematical fact. No two developers have the same contribution pattern. Your sky is yours alone.
And it's not about how many stars you have. A sky full of bright clusters isn't better than one with quiet gaps and sudden bursts. What matters is the shape of it - the rhythm, the story it tells.
You'll see the month you went heads-down on that rewrite. The gap where you took a break and came back stronger. The dense streak where everything just clicked. The quiet winter before you started something new.
Other people will see a beautiful print. You'll see your life.
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