adding a packages to pkgsrc for DragonflyBSD only?

[B. Estrade]

I would like to add a package to pkgsrc, but the immediate purpose is
specifically to make it available for DragonflyBSD.

Can I add something to DragonflyBSD's pkgsrc without having to worry
about the upstream, or would I have to get it added up stream first?

I maintain lang/qore on FreeBSD's Ports, and I would like to bring it
to DragonflyBSD.

Thank you,
Brett
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