Apple sharing the source code of the #LisaOS under proprietary non-commercial terms irks me.
What commercial applications are left in that code could possibly impact their bottom line? We're talking about code older than Classic Mac OS.
I know it is remarkable in the sense that other people like Microsoft are clutching onto the code for Windows 1.0 still at this late hour in computer history.
But it another sense it shows remarkable cowardice and lack of vision.