Jack Coldrick

jack@coldrick — zsh

how was this built?

jack@coldrick — architecture

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FrontendSingle static index.html — vanilla JS, no framework or build step.

BackgroundHand-rolled HTML5 canvas: dot grid, drifting colour clouds, cursor-reactive glow.

Contact formVercel serverless function → Resend API, with spam protections in place.

HostingDeployed on Vercel via the CLI, straight from this project.

Built withClaude (Claude Code) — design, code and deploys, end to end.

jack@coldrick — projects

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city-slinger open source · playable

A side-scrolling web-swinging game set in an endless 3D city. Click a building to fire a web, hold to reel yourself in, let go to fly — the arc you release on is the arc you keep. Collect pizza, dodge drones, and put a distance on the leaderboard.

built with three.js · WebGL · Vercel Functions · Postgres

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nightcity open source · playable

An endless side-scrolling pixel-art city you walk through at night, while the place quietly gets on with being alive around you. Built with no framework, no build step and no dependencies.

built with vanilla JavaScript · HTML canvas · Python tooling · Vercel

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robin private · in daily use

A shared feed tracker for a newborn, used by two parents on their own phones. One button: tap to start a feed, tap to end it, then log whether it was breast milk or formula and how much.

built with Next.js · Postgres (Neon) · Drizzle ORM · Clerk · Vercel

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jack@coldrick — mail

Company

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