The graphical operating system that could have been for the IBM XT.
A MacOS-like desktop for the Intel 8086, written entirely in real-mode assembly (with Claude). Verified to run on real hardware, with FAT12/16 support, ported apps, games, Sound Blaster support and upcoming Hard Drive support.
Well there was GeoWorks (which AOL used the GUI of to their advantage):
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Just discovered the videos (https://www.youtube.com/@NostalgiaPCTV)
...and the source code on github reads like a book.
Amazing.
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