It started in a garage and now runs on custom silicon, a services machine, and a billion-plus devices that all talk to each other. Here is how the walled garden actually works - and why leaving it feels like moving countries.
Apple software can only be built on Apple machines. MacStadium turned that rule into a business - 10,000-plus Macs in data centers, orchestrated like any other cloud.
jo is a voice-first personal AI agent for macOS that runs on your Mac and a private, per-user cloud machine. Rather than waiting to be asked, it proactively summarizes what is on your screen, drafts emails, manages your calendar, clips relevant content, and keeps up with the loose ends of work and life. Built natively in Swift for Apple Silicon and backed by Y Combinator (W24), jo reaches users across Mac, web, iMessage, Telegram, and WhatsApp while keeping personal data local and out of model training.
webAI is an Austin-based sovereign AI company that lets enterprises build, train, and run custom AI models on their own local hardware instead of the cloud. Founded in 2019 by David Stout, Ethan Baird, and Tyler Mauer, its end-to-end platform - spanning the Navigator development environment, the Companion assistant, and webFrame clustering software for Apple silicon - keeps sensitive data on-device while delivering cloud-grade intelligence. The company reached a reported $2.5 billion valuation in early 2026 and serves customers across healthcare, retail, logistics, and aviation.
Dr Howard Oakley is the one-man newsroom and software workshop behind The Eclectic Light Company, a blog that pairs deep-dive macOS internals with the history of painting. A retired Royal Navy Surgeon Commander and cold-injury researcher turned indie Mac developer, he writes daily about how macOS actually works and ships more than 40 free utilities such as SilentKnight, Consolation and T2M2 - all without a single line of AI-generated content.

Wideframe is an AI coworker for professional video editors that automates the tedious prep work - searching, labeling, organizing, and sequencing footage - that takes up roughly 75% of an editor's time outside the timeline. Built for Mac on Apple Silicon, it runs entirely on-device, reads and writes native Adobe Premiere Pro project files, and lets editors describe what they need in plain language. The result: hours of prep work compressed into minutes, and editors freed up to actually edit.