Let's Go Christo!

Projects

Products I've built and shipped. From AI-powered commodities trading to podcast generation to local discovery.

RepoFinder

I open-sourced this Built with OpenAI Codex

Turn a project and a goal into a short list of open source tools that genuinely fit - then interrogate every pick. Built entirely with OpenAI Codex on the OpenAI Responses API: gpt-5.6-luna extracts, gpt-5.6-terra ranks and explains, strict JSON Schema outputs, a labeled GitHub fallback, a remote MCP tool, 15 checked-in lessons on how Codex works, and a three-tier eval harness. One Cloudflare Worker, D1, plain HTML/CSS/JS.

Codex OpenAI Responses API MCP Cloudflare Workers D1 Evals Open Source

Daytripper

I open-sourced this Built with OpenAI Codex

A travel planner built in one overnight session to learn OpenAI Codex. Pick Lisbon, Tokyo, or Mexico City, set budget, time, vibe, pace, and interests, and get one thoughtful day plan with an honest cost estimate and a "why this fits" explanation. Deliberately zero LLM calls at runtime - a deterministic scoring engine, with tests that run all 1,296 possible preference combinations and check every plan is chronological, in the right city, and under budget. Next.js 16 on Cloudflare Workers via vinext.

Codex OpenAI Next.js React 19 Cloudflare Workers Evals Open Source

Audit Kit

I open-sourced this Built with Claude Code

Open-source Claude Code kit that decodes a codebase you inherited. Point it at any repo and one command produces full documentation with diagrams, an executable test suite, prioritized recommendations split for three teams (engineering, SRE, data science), and a deployed review portal you can chat with. About 30 minutes, about $30 in tokens - versus a multi-week, five-figure engagement.

Claude Code Cloudflare Open Source Due Diligence Agents

Repo Recommender

I open-sourced this Built with Claude Code

Launched July 2026, the disciplined follow-up to RepoRadar. Point it at your GitHub repo and a goal ("auth solution", "background jobs") and it returns open-source repos that genuinely complement yours, with a reason each one fits and ratings for ease and impact. Built in the open with Claude Code, with every major step written up in a 23-lesson book: plan mode, CLAUDE.md, custom skills, hooks, model tiering (Haiku extracts, Sonnet reasons), and one engine serving both a Web API and an MCP server.

Claude Code Claude API MCP Cloudflare Workers D1 TypeScript

RepoRadar

I open-sourced this Built with Claude Code

2nd place worldwide out of 302 teams (~1,400 builders across 17 cities) at the Generative UI Global Hackathon (May 9, 2026). Tune a Street-Fighter-style radar of trending GitHub repos by hex, slider, or text - then click Deploy and an agent emits a bespoke interactive micro-app for that repo at its own subdomain, backed by a per-deploy D1 database. Built in four hours.

Hackathon Generative UI A2UI CopilotKit Gemini Cloudflare Workers D1 R2 MCP MIT

SE Kanban

Built with Claude Code

A private Kanban board I built in late April 2026 for my own Solutions Engineering work, so customer follow-ups, opportunities, and field tasks stop slipping through the cracks. Not a public product - just calling it out as another piece the agent fleet and I keep humming in the background.

Internal Tool Kanban Solutions Engineering Cloudflare

ComHedge

Financial Services Built with Claude Code

In stealth since April 2026 and actively in development. A commodities trading advisory platform - reinforcement learning in the Karpathy lineage, trained one commodity at a time, with an internal Python paper-trading rig and Coinbase integration to validate before live capital. Co-founded with an anonymous commodities hedge trader.

Commodities Reinforcement Learning Karpathy Paper Trading Coinbase

letsgochristo.com

social Built with Claude Code

This site - my home on the internet for writing about agent fleets, AI builds, and security work. Launched in February 2026 on Astro + Cloudflare Pages + Workers + D1, with an AI voice agent (Max) on /max so visitors can talk to it directly. Open for feedback and topic requests.

Astro Cloudflare Pages Workers D1 MDX Building in Public

Moder.fun

social Built with Claude Code

Launched February 2026. An AI Minecraft mod generator built with my 10-year-old son Hudson, who watched the GetLocalGems build and wanted in. A fun, family-built project proving that AI makes everyone a builder.

Cloudflare Pages Family AI

GetLocalGems.com

Travel Built with Claude Code

Launched January 2026, born from watching my wife spend hours of vacation research hunting down the coolest local spots. AI deep research across Reddit, expat blogs, and local communities that builds personalized guides to the hidden gems tourists never see.

Cloudflare Pages D1 AI Local

Blogcast.io

Voice Agents Podcasting Built with Claude Code

Launched December 2025. A podcast studio that turns any text - publisher articles, Reddit threads, YouTube transcripts - into recurring conversational audio with hosts, personalities, and angles you choose. Like NotebookLM, but richer.

Cloudflare Workers AI TTS Content

Cloudflare Blog Podcast

social Built with Claude Code

Launched December 2025 alongside Blogcast.io, the platform that grew out of it. A daily-ish AI-generated podcast that turns every new post on blog.cloudflare.com into a 5-7 minute conversation between two hosts (Juniper and Mark). Built originally for my own morning walks, then for a few SE coworkers. Subscribe in Overcast or Apple Podcasts with the RSS feed.

Podcast AI Audio ElevenLabs Blogcast.io Cloudflare RSS

P2C2 Art

social Built with Claude Code

Launched November 2025 - the first build of the nonstop era. An AI video studio + portfolio site I co-founded with a videographer friend. We wrote scripts and small pipelines for generating short-form AI video with Higgs Field, CapCut, Veo, and Seedance. It never quite took off, but the site stands and we are open to collaborating - submit ideas for AI video projects and we will build them together.

AI Video Higgs Field CapCut Veo Seedance Portfolio