The npx serve of Apple Simulators.

Host your simulator for use with Agent tools like Codex, Cursor, or Claude Desktop — locally, over your LAN, or host on a remote mac and tunnel anywhere.

serve-sim spawns a small Swift helper that captures the simulator's framebuffer via simctl io, exposes it as an MJPEG stream + WebSocket control channel, and serves a React preview UI on top. It works with any booted iOS Simulator — no Xcode plugin, no instrumentation in your app.

📱Generate optimized order files directly from an Xcode UI test. Order files optimize app launch times, with improvements in production measured to be over 20%

Order files can reduce app startup time by co-locating symbols that are accessed during app launch, reducing the number of page faults from the app. This package generates an order file by launching the app in an XCUITest.

Related contents:

• An open source tool to speed up iOS app launch @ Sentry.

Cross-platform Xcode replacement. Build and deploy iOS apps with SwiftPM on Linux, Windows, macOS.

• xtool @ GitHub.