A permanent exhibition of the rarest software worlds ever built. Some were decades ahead of their time. Some were built by one person. Some still boot today if you know where to look.
Entire operating systems written, unbelievably, by a single human being. Kernel, compiler, GUI, everything.
Terry Davis spent a decade building an entire OS alone: his own kernel, his own compiler, his own language (HolyC), all in 100k lines. He believed it was a divine commission, a third temple made of code. Brilliant, tragic, and unlike anything else in computing history.
Andreas Kling started it as a daily discipline after leaving rehab, streaming every line on YouTube. The rule: zero third-party code. The whole userland, browser included, was built from scratch. That browser grew up and left home; it's now the independent Ladybird project.
A complete graphical operating system written entirely in x86 assembly language. The whole thing, GUI and all, fits inside 1.44 MB. In an era of multi-gigabyte OS installs, Menuet is a monk's demonstration that almost all of that weight is optional.
Systems the mainstream forgot, kept alive by small crews who refuse to let them die. All of these boot on real hardware today.
In the 90s, BeOS was the future: pervasive multithreading, a 64-bit journaling filesystem with database powers, buttery media playback. Apple nearly bought it, chose NeXT instead, and Be died. Haiku is its open-source resurrection, and it is still genuinely pleasant to use.
Built by Acorn for the original ARM processor, which Acorn itself invented. The company that made this quiet beige British desktop accidentally created the CPU architecture now inside nearly every phone on Earth. RISC OS still runs today, happily, on a Raspberry Pi.
A fork of MenuetOS and possibly the fastest-booting graphical OS in existence. Power button to full desktop in about two seconds, on ancient hardware. Named for the hummingbird, and it earns it. A vivid reminder of how much waiting we've simply agreed to accept.
The rare entry that's rare because it's from the future, not the past. A full microkernel OS written in Rust, betting that whole classes of security bugs (the kind that have haunted C-based systems for 50 years) can be designed out of existence at the language level.
The deep archive. Systems that shaped everything you use today and then vanished. Original hardware is collector-grade.
What the creators of Unix built when asked to do it again, properly. Every resource in the system, windows, network connections, even the mouse, is a file you can read and write. Almost nobody ran it, but Linux quietly absorbed its best ideas (/proc, union mounts, UTF-8 itself).
The Incompatible Timesharing System, birthplace of hacker culture at MIT's AI Lab. It had no passwords and no file security, as a philosophical statement: information wants to be shared. Emacs was born here. So was much of the culture that later produced open source.
The cathedral that Unix was built to escape. Multics invented the hierarchical filesystem, dynamic linking, and serious computer security. Ken Thompson and Dennis Ritchie worked on it, found it too heavy, and wrote a small rebellious system they jokingly named Unix.
The Lisp machine OS that veterans still describe as decades ahead of anything since. The whole system was live, inspectable Lisp: you could open any part of the running OS, edit it, and keep going. Symbolics also held the first .com domain ever registered. Working machines now sell for thousands.