Open-Source on Evan Coleman

Introducing xcode-remote: A Feedback Loop for AI Agents That Write Swift

Wed, 08 Jul 2026 00:00:00 +0000

My coding agents live on a headless Mac, supervised by Leo. They run in launchd background sessions: no GUI, no logged-in desktop, nobody at the keyboard. For most work that’s fine. An agent can write Swift, run tests, even boot a simulator headlessly and screenshot it. What it can’t do is put the app in front of me.

The apps I want to watch run on the Mac I’m sitting at, in a simulator there or on the iPhone paired to it. So for a while the loop closed through me: the agent builds, I copy the .app over, launch it, squint at Console, and paste crash reports back into the conversation. That got old fast.

Introducing Leo: From OpenClaw to Native Claude Code

Sun, 19 Apr 2026 00:00:00 +0000

Like many, I participated in the AI agent revolution that is OpenClaw early this year. In the beginning, it was magical. It managed my inbox and calendar, kept me up to date on news. I even tried using it for coding.

It wasn’t long before I started to get frustrated. OpenClaw is a genuinely impressive project, but it moves fast and updates would frequently break things. It got to the point where I found myself spending more time making sure things were working than actually getting any benefit out of it. Eventually I found myself reaching for Claude Code more than my OpenClaw agent.

Introducing MacroBrewery: A Collection of Swift Macros for Code Generation

Tue, 30 Dec 2025 00:00:00 +0000

If you’ve worked on a Swift codebase of any size, you’ve written the same boilerplate code hundreds of times. Memberwise initializers. Builder patterns. Enum case accessors. Test stubs. It’s tedious, error-prone, and frankly, boring.

Swift 5.9 introduced macros, and I finally had a way to solve this properly. So I built MacroBrewery, a collection of macros that generate the repetitive code I was tired of writing by hand.

What’s Included

@AutoInit

Generates memberwise initializers that improve on Swift’s built-in one: optionals default to nil, properties with default values preserve them as parameter defaults, and you can set any access level.