+Recently there was a stream of articles hyping the Linux driver ntsync which implemented a helper for Wine to accelerate Windows NT synchronization primitives.
+The substrates to implement semaphores, mutexes, and events from the Win32 land are provided by it.
+The driver represents each NT object as a file descriptor, which has the set of the ioctls defined that directly map into the Win32 operations.
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+The project implemented the driver providing the compatible ntsync interface as specified in the Linux 7.0-rc3 document Documentation/userspace-api/ntsync.rst.
+Both native FreeBSD interface, and the Linuxolator compat layers, are written.
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+To test the driver, a minimal version of the Linux kernel test harness was ported.
+FreeBSD driver follows the interface details as encoded by the tests, when a discrepancy between Linux documentation and tests was found.
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+Both driver and its man page ntsync(4) were written from scratch, without consulting the Linux source code.