How to create 3D Procedural Generator like Matter Flow Project?

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:bust_in_silhouette: Asked By kulikod

[1]: http://www.youtube.com/watch?v=Yf1_MYaqGys - video “Real-time 3D-Model Generator | Procedural Universe Space Exploration Indie Game DevLog | Matter Flow”

Please, if anyone knows it better, can you help me or describe exactly how to create such a generator based on 300 objects and only 2 textures?
I really want to recreate this type of algorithm.

The application is to be one of my simple models (shapes)
prefabricated elements are created, and from them, let’s say (walls), the algorithm is supposed to generate a whole room with a void inside. Then I will adjust the algorithm so that it renders ships, items, etc. in addition to rooms in the space station. Then I will add these models to my game or create an algorithm inside to generate these structures by itself. My experience when it comes to programming is that I can write code in Gdscript and python, I create models in Blender. I hope this clarifies a little more what I mean.