Redo ship factories
Ship factories currently cause a lot of lag. Their implementation is extremely inefficient. It is technically possible to make an efficient implementation for block by block placing, but I have a better idea: All at once placing. This would be far easier to program efficiently.
Placing instantly may be too OP. To balance this, factories could require a certain type of item for every x blocks placed using credits. This item could be a custom ore or something largely unused like prismarine crystals or lapis.