Pretty much just be able to put water into a base without having to build near a body of water.
There’s a mod for that, but it would be nice to be able to make pools/ponds in vanilla.
Yeah, being able to build a fishing pond in a base would be nice. Or build a moat for a castle would be cool, too.
Wouldn’t be too crazy (or hopeful) for terraforming to allow moats and ponds. But, it would be nice to supplement the existing wells with adobe and brick cisterns.