lang/openjdk-bin for platforms other than amd64 NetBSD or Linux?

["J. Lewis Muir" <jlmuir%imca-cat.org@localhost>]

Looking at lang/openjdk-bin/Makefile, it appears that it's only for
Linux amd64 or NetBSD amd64 using Linux emulation.  Is there openness to
making this more general so that it would work for other platforms such
as macOS arm64?

My use case is that I want to build binary packages for Linux, macOS,
and NetBSD, and I want to package package A for pkgsrc that depends on
Java, and I want the Java dependency from package A to be satisfied from
pkgsrc, not the underlying OS, so that I can build binary packages on a
minimal system of each platform and know that installing binary package
A will result in an appropriate JRE (Java Runtime Environment) getting
installed so that package A will work.

I'm also aware of lang/openjdk21, but it has a big scary warning in
DESCR that says the following:

  This package is NOT certified to be compatible with any Java standard.
  Use at own risk.

Thanks,

Lewis