joyyang.dev

Projects

mostly personal projects, with a couple hackathons and random misc stuff thrown in!

Jul 21, 2025

shopkeep-gpt 🏆

Responsible AI in practice - a fully autonomous vending machine that haggles with you. Built by Socrates Osorio, Spruce Campbell, Alex Hu, Kashyap Nathan, Raymond Ma, and myself at the OpenAI internal hackathon. Second across company and first across interns by taco count.

Aug 17, 2025 8

swarmsim

A mini distributed multi‑agent sandbox to learn and benchmark coordination at scale. Gossip, majority vote, and auction, main tasks being resource gathering, K‑of‑N bridges. With live visualization, protocols, and observability.

Aug 9, 2025 10

mazerpc

A deterministic FPV maze racer showcasing reproducible gameplay, server‑authoritative physics, and event‑sourced infra.

Aug 2, 2025 10

threadweaver

Compose a living city. Paint the sky. Talk to NPCs. Learn their story as though it mattered. A sunset‑drenched Three.js world with first‑person exploration and OpenAI‑powered, personality‑driven NPC chat.

Jan 1, 2020 20

about me :)

Systems thinker at the intersection of CS and governance — building things people can touch, and making sense of why they matter.

Jul 21, 2025 6

adswap

A browser extension + platform that lets readers pay a tiny fee per page to hide ads for N hours — with real money flowing to the publisher. Not “kill ads,” but “buy back my attention.” JWT passes, publisher-verified disabling of ad stacks, and Stripe-based payouts make it privacy-friendly and publisher-positive.

Feb 6, 2021 2

search-engine

A glow‑up of a 2021 side project — a highly‑stylized start page and search UI with playful, opt‑in “chaos” modes, micro‑interactions, and a lightweight Google Custom Search client.