"My business card emulates a long-obsolete MIPS-based DEC computer, which then runs Linux" is a more accurate, and certainly significantly more impressive, description :)
Excellent work, excellent writeup. Hopefully those lucky should who receive these cards from you understand how much sweat and blood went into them!
Love your work.
That was followed by a replacement subsystem, Windows Services for Unix [1], which later used a “real” Unix compatible layer after their purchase of Interix.
WSLv1 was therefore the fourth subsystem available (though it couldn’t do some of what the previous ones did, and did some of what they couldn’t), and the complete rewrite as WSLv2 is at least the fifth such attempt.
[0]: https://en.m.wikipedia.org/wiki/Microsoft_POSIX_subsystem
[1]: https://en.m.wikipedia.org/wiki/Windows_Services_for_UNIX