Archimedes Live – run early ARM software in the browser (archi.medes.live)

Archimedes Live is a project by Paul Stone which allows anyone to try out an emulated Acorn Archimedes computer in their web browser. The Archimedes, first released in 1987, was Acorn's 32-bit successor to the BBC Micro. Acorn also created the ARM2 processor at the heart of the Archimedes - the ancestor of the ARM chips that power billions of smartphones, computers and other devices around the world today.

The emulator itself is a WebAssembly port of Sarah Walker's excellent Arculator Archimedes emulator.

Since ycombinator failed to parse the URL correctly, here it is in all its glory; https://archi.medes.live/