This Website Is Served by an OS Written in Swift
TL;DR: I wrote an operating system in Embedded Swift for 64-bit ARM: kernel, drivers, TCP/IP stack, and userland. It runs on a Hetzner Cloud ARM VM and serves its own website, swiftos.tech, over HTTPS — nginx on my own kernel, my own syscall ABI, my own libc port. No Linux inside the guest.
It also runs Node.js (jitless), hosts SQLite on its own filesystem, and schedules across four cores. The git history is 1,235 commits in two months, much of it written in pair with a coding agent under strict per-milestone gates — more on that below. Along the way, a text editor found a race in my scheduler and autoconf burned a six-hour CI budget executing a binary that had no OS to run on.
Disclaimer.SwiftOS is a hobby research project, not a production OS. I write about Swift and on-device AI, so I'm not neutral. The...
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