ClapClap

ClapClap was a video infrastructure product for web3, funded by a StarkWare grant to build on Starknet with Cairo. The pitch was simple: creators upload a video, a contract mints it as an ERC-721, the media gets transcoded by Livepeer and stored on IPFS/Filecoin, and the whole thing streams back through a web app that feels like a normal player.

I joined as senior web3 frontend engineer from March to July 2022. I wrote the ERC-721 contracts, the tests, and the Hardhat deploy scripts on the contract side. On the frontend I built the React/Next.js app on top of Ethers.js and StarkNet.js in TypeScript, wired up the Livepeer transcoding pipeline, and pushed metadata through IPFS and Filecoin so the videos were actually censorship-resistant instead of pretending to be.