White dwarf matter, neutron-degenerate matter (I'm still confused as to whether this is the same thing as "neutronium" or not), and other possible types of degenerate matter like quark stars are generally discussed in the context of stars, that have cooled enough that gas pressure cannot support them against gravity. People do not often discuss the potential for small chunks of degenerate matter, which I know well would be explosively unstable in the absence of a non-gravitational constraining force.
It seems somewhat intuitively possible that white-dwarf-like or neutron-star-like matter could be artificially produced in small quantities by a vast cosmically scaled-up version of some of the machinery currently used in inertial-confinement fusion research to compress deuterium pellets to truly unreasonable densities. Of course, degenerate matter created by such a method would immediately explode back into normal matter with even more rapidity than the deuterium. (and somehow I feel like the resulting storm of relativistic baryons would possibly destroy the machine).
So I ask whether there's any physically plausible method by which neutron-star-like or white-dwarf-like degenerate matter could be artificially produced in the steady state, other than by accumulating enough matter in a star that its own gravity crushes it.