Hi, I'm Sankalp
I build things and think about why they matter. Sometimes I write about it. Currently working on Geology — the most AI-forward marketing agency on the planet.
Recent visualizations
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climate · 1901–2024
India's monsoon mood ring
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geography · 1994–2013
The night-lights frontier
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environment · 2016–2026
Delhi's air, every day for a decade
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infrastructure · 1853–present
India by rail, century by century
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Bangalore · 1991–2011
Where Bangalore actually grew
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Bangalore · Sep 2025
A month on the Bangalore metro
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Bangalore · tree census
The trees of Yelahanka
Recent writing
- Your repo isn't a codebase anymore
- Life lessons I learned by playing boardgames
- The problem with APIs
- Go deep enough but not more than needed
- Designing for developers
- Designing Modern Products with Tools from the Past
- The tale of two Indian cities
- Thinking in Programming Languages