So, Windows Subsystem for Linux.
I generally like it. If I want to do Linux-shaped things on a Windows machine, which I often do, then even WSL1 is both faster, and a more faithful imitation, than Cygwin. And WSL2 is better still, on both counts. Plus you get to pick the distro of your choice. I haven't used Cygwin in years.
But I can't shake the feeling that if SQL is pronounced 'sequel', then WSL ought to be pronounced 'weasel'.
@simontatham I have a colleague who does exactly that. 😺