I took some time to get an OPENSTEP-compatible frontend for NetSurf working.
You can find the fork at https://github.com/turbolent/netsurf-openstep. Building requires several dependencies, which are available via https://github.com/turbolent/openstep-pkg
Getting another browser working on OPENSTEP has been a holy grail for decades. It's fun writing web pages like we're stuck in 1997 but damn, this is amazing work. :) The vintage Mach world will never be the same!