https://arstechnica.com/gadgets/2022/04/boot-up-classic-mac-os-in-your-browser-window-with-the-infinite-mac-project/

For retro computing enthusiasts, there's no substitute for unearthing ancient hardware and computing like it's 1999. But as with old video games, emulation offers a much more convenient way to run old software. Now, running System 7 or Mac OS 8 on a virtual 68k Mac is more convenient than ever, thanks to a clever project dubbed "Infinite Mac."