I saw that the dosdude patchers were downloading those (or similar) .sucatalog files but they're pretty large and I had trouble figuring out which URLs in there

I saw that the dosdude patchers were downloading those (or similar) .sucatalog files but they're pretty large and I had trouble figuring out which URLs in there corresponded to the OS installers I needed, or whether the installer was maybe broken up into parts or something... so after a brief period of desire to figure out how that file was organized, I downloaded all 3 patchers and clicked the Download button, heh. That gib tool looks helpful, and... wow, I haven't seen that word since the Quake days!