BeOS Now Runnable in Browser via Infinite Mac Project

Infinite Mac, a browser-based emulation platform for classic operating systems, now supports multiple PowerPC versions of BeOS. The addition lets users experience the multimedia-focused OS that Apple once considered acquiring, complete with pre-installed software and the ability to mount CD-ROMs from archive sources. The OS was notable for its speed, POSIX compliance, and developer-first design, though its interface featured unconventional choices like a hand cursor and tabbed window titles.

Integrating BeOS proved more complex than anticipated, requiring the author to fix numerous bugs in the DingusPPC emulator. Issues ranged from ADB emulation causing modifier key glitches, to hardware notification ordering problems affecting screen rendering, to compatibility quirks with HFS partitions. Even SheepShaver, a PowerPC emulator that originated on BeOS itself, needed patches. These fixes improved overall emulator accuracy by exercising code paths that Mac OS had never exposed, making DingusPPC now the only emulator capable of running PowerPC BeOS versions.

From a 2026 perspective, BeOS feels like an unfinished but ambitious system. It boots fast and handles multitasking smoothly compared to Mac OS of the era, with a Unix-like shell that feels modern even today. The system appears developer-focused, with bundled applications serving mostly as technology demonstrations. Be’s eventual pivot toward internet appliances led to open-sourcing the Tracker file manager, reflecting the company’s strategic shift away from traditional desktop computing.