This mod has been updated and taken over by Silari, https://mods.factorio.com/mod/homeworld_redux

Your race is almost extinct. Only a handful of people survive on your home planet. It was you who sacrificed yourself for the greater good and chose to travel to another planet, knowing you may never come back. The only technology that survived the catastrophe was two portals. While these portals cannot transport living matter, they can easily transport anything else, such as vital resources. On this hostile, alien planet you must build a factory to supply resources to your homeworld.

The main objective of Factorio has changed, instead of racing to the Rocket Silo, you must now supply your homeworld with an ever increasing supply of resources. Homeworld also adds a bunch of new machines, production chains and technology. Such features include farms, fisheries, alcohol, building materials, terraformers and more.