Windows builds
From OpenZFS on OS X
Nightly builds
We do not have nightly builds.
https://www.lundman.net/OpenZFSOnWindows-debug-0.8.0-2019-g3abfd80b2-dirty.exe 2021/09/30 2.1.0-rc1
Since I am still fighting Microsoft on the partner network, you will have to follow this procedure to allow the driver to load:
Or enable developer mode: https://www.howtogeek.com/292914/what-is-developer-mode-in-windows-10/