- nix: refactor nix-build options into pass thru sub-tables.
- nix: refactor nix-build options into pass thru sub-tables.

devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5,devzero2000/RPM5