Prakhar Gautam
5 built · 3 actually finished
Things I made that worked and a lot of stuff that didn't work.
Some of these run in production. All of them taught me something.
-
a few late nights shipped
Redox Bay
Pick a negative and positive electrolyte, tune the cell, and read the specs — voltage, energy density, current, round-trip efficiency — the way an engineer would size a flow battery. Every number comes straight out of the Nernst equation, not a lookup table, and it flags real tradeoffs like toxicity and off-gassing depending on the chemistry you pick.
-
nights and weekends shipped
Black Hole Sky
Point your phone at the sky and it tells you which black hole you're looking at — no API, no server, no key, just a hardcoded catalog of 60 objects and some coordinate math running entirely client-side. The catalog spans supermassive black holes, X-ray binaries, Gaia astrometric detections, and LIGO/Virgo gravitational-wave mergers, each mapped from RA/Dec into real-time altitude and azimuth using the phone's compass and GPS. Where the underlying data is genuinely uncertain — most gravitational-wave events don't have a real point-source position — the app says so instead of quietly making one up.
-
one Sunday shipped
Fridge Roulette
Type in whatever's actually sitting in your fridge and it picks dinner for you, calling the Claude API to turn a random assortment of ingredients into an actual recipe instead of a shrug. Built in one Sunday because deciding what to cook was consistently taking longer than cooking it.
-
three evenings so far in progress
Mini Community
An early attempt at a tiny game inspired by the study-room dynamic on Community, with a voice-driven angle — Whisper doing speech-to-text, a small Python backend running on Cloudflare Workers. Three evenings in, still mostly scaffolding, nothing playable yet.
-
a rainy weekend resting
Plant Watering Guilt Machine
Texts me when a plant is thirsty, built on a rainy weekend out of mild houseplant negligence. The plants are all fine now, which mostly means the thing is sitting there quietly succeeding rather than needing any more work.
Want to build something
I'm easy to reach
If any of this looks like the kind of thing you need, say hello. I reply to almost everything.
Send an email →Elsewhere