Blog
Notes on building AI mobile apps and the open-source developer tools I make.

LatestOpen source
HushReply: free comment-to-DM for Instagram and Facebook
The one ManyChat feature most creators use, as a self-hosted Cloudflare Worker with no contact limits and no monthly fee.
· 2 min read
Dev tools · 3 minAgent Rack: one MCP interface for all your AI coding agents
Dev tools · 2 minccbar: see your Claude Code limits without leaving the prompt
Research · 2 minRunning a fraud-detection LLM entirely on the phone
React Native · 1 minAdd an AI chat assistant to your React Native app
AI · 1 minSparkle AI: a ChatGPT-style assistant for iOS and Android