I'm open to contributing it. It'd save me the trouble of making and maintaining screensavers myself, which is a very common request. The struggle to support a Mac screensaver for more than a few years at a time has already swallowed a great Matrix project before, mathew's RedPill ( https://github.com/lpar/RedPill ).
One important matter I haven't investigated yet is what constraints there are on GL in xscreensaver as a whole. My project is basically a shader sandwich, but there are alternative approaches a port can take if that's untenable.
I also sincerely like jwz's cheeky competitiveness with other screensaver authors— when xscreensaver 4.11 was released, he captioned it, "Watch as GLMatrix makes RedPill scream for mercy." If I port to xscreensaver I'll make sure to continue the tradition.
