duh.
@ -342,6 +342,7 @@ in {
"/etc/fstab".source = fstab;
"/lib/modules".source = "${modulesClosure}/lib/modules";
"/lib/firmware".source = "${modulesClosure}/lib/firmware";
"/etc/modules-load.d/nixos.conf".text = concatStringsSep "\n" config.boot.initrd.kernelModules;