This is a browser-based collection of emulators for 1980s 8-bit computers and arcade machines—KC85 (East German), Commodore (C64, VIC-20), ZX Spectrum, Amstrad CPC, Acorn Atom, and others. The page itself is mostly an interactive menu: clicking each system name loads a working emulator in the browser, and many include playable demos, games, and BASIC/assembly environments. The source text is just the link labels and titles, so I can't tell you implementation details, performance claims, or whether these are faithful cycle-accurate emulators or simplified versions. But the practical claim is straightforward—you can run and interact with these machines directly in your browser without installation. The author is Florian Willich (github.com/floooh), known for the CHIPS emulator collection.