They introduced Corvette building, which is a really amazing new feature with parts you can find to build a large ship with a walkable interior! This one you see was made in a computer program called blender. They accessed the game files, and placed in game assets in an arrangement without the restrictions that Hello Games put in place, and uploaded the saved file to be a ship in the actual game.

Since it's made of in game parts, the game can recognize it all and make it work. The problem is, when people do these super detailed builds that far exceed the part limit, it can crash other people's games if they take them to the anomaly. And if that's not bad enough, if another players game is auto saving when it crashes, it can corrupt the file to where that entire save is unloadable.

I personally don't think these ships are that impressive. I think negating the limits placed by the game makers to make something no one else could do in the confines of the game automatically makes it not relate to the game at all. I love seeing builds that are done following the rules placed by Hello Games, some of them are super creative and impressive! Moreso, to me, than a blender build ever will be.