Nice, now if this could be formed into a submenu off of the main one with repositories and synaptic like action, then it would go a ways towards helping minetest form its own niche separate from that other game. It would also simplify things and help gain appeal with non-computer savy potential users by giving the game a modularity that is not usually seen.
Please feel free to browse the packages there and submit any you see missing--I'd very much like to have a comprehensive list of packages.
Please note that I have to manually approve each one for now, so it may be a little while before your package shows up. Be patient, it will be there soon.