read it backwards
I’m glad to see someone else thought to mention the Create mod when faced with this question, however, one must also mention the addon mod Create: Interactive, it would in theory allow you to create a self-perpetuating giant train base that drills its path forward, creates more rail in a built in production line with the drilled stone and deploys it automatically. Let’s not forget the one addon specifically made to expand the train system as well. 
I personally find that the most tragic thing about the internet is how if you looked at the way it was made you’d almost think it was the product of a socialist state. It is a product of intensive collaboration between different researchers, fully subsidized by the state every step of the way and the end result effectively given away for free to the public. Now it is rendered a wasteland, carved up and privatized, and with LLMs and image generators it can only get worse as everything gets filled up with computer generated slop.
However, let’s take a moment to think about how much good such technology could do if it was subservient to the needs of a socialist state, search engines that actually give you what you want, central planning networks with unparalleled efficiency, social media that prevents the reproduction of reactionary thought, a free, fully organized and easy to access centralized digital library of all academic resources. I can’t help but be hopeful for whatever society comes out of this capitalist hell.
I recently discovered the Create mod for Minecraft and it is still blowing my mind, it might be the best mod ever made for the game. I still remember watching the trailer for the mod and my first reaction being “THIS MOD ADDS THE MEANS OF PRODUCTION TO MINECRAFT!”
I already had the idea to make a post scarcity fully automated luxury communist villager society in Minecraft and this mod is exactly the missing piece to my plan.