I went via https://vmssoftware.com/ and the get Get OpenVMS link which yeilds a form that has:
"To help us qualify your application for this evaluation release kit, please fill out the following survey. Please be advised that community (hobbyist) licenses are not currently available, evaluation licenses are provided to commercial customers only."
https://virtuallyfun.com/wordpress/2022/04/18/ready-to-run-o...
Same with OpenServer from SCO
"In July 1992, DEC renamed VAX/VMS to OpenVMS as an indication for its support of open systems industry standards such as POSIX and Unix compatibility, and to drop the VAX connection since a migration to a different architecture was underway."
https://en.wikipedia.org/wiki/Open_source#Open_source_as_a_t...
Why? Did you do that toward's SCO?
But later you found out about BSD's?