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

LatestDeveloper tools
LookTap: I benchmarked 9 tools that let AI agents use a phone
The same 12 steps on an iPhone simulator and an Android emulator, 10 runs each, checked by a neutral oracle. What an agent actually feels is calls, bytes and setup.
· 5 min read
Case study · 3 minA business payments app, from an empty repo to store builds in weeks
Case study · 2 minData explorers and profiles for a private-markets research platform
Open source · 2 minHushReply: free comment-to-DM for Instagram and Facebook
Case study · 2 minVirtual cards straight into Apple Pay and Google Pay
Case study · 3 minFamily location sharing, installed on more than 200,000 Android phones
Dev tools · 3 minAgent Rack: one MCP interface for all your AI coding agents