[lukeh]

Rhapsody was still pre-Mk but had 4.4BSD userland. It could run OPENSTEP binaries if you copied the shared libraries over, from memory one of the ex-NeXT engineers did this for fun.

[spijdar]

Cool :) this is all before my time but I've got a few Sun boxes running various old BSDs and Nextstep 3.3.

I've always been kind of curious how hard it'd be to get NetBSD's COMPAT_DARWIN and COMPAT_MACH to run the next/openstep userland...