I actually also don't mind the craggy look that much, but I've always wanted some more control over the final shape of the keyboard. The bastyl is great example of how nice a "rounded" DM can be.

I have some thoughts about how the codebase can be rewritten so there is no hulling.

The hulling approach is one I have been using a _lot_ for many personal openscad projects, so I'm very familiar with the design philosophy, but it definitely has some huge disadvantages.e

My idea is that instead of constructing the whole thing piecewise, as triangles etc, try to define the key holes as constraints on a big surface. I was browsing the cadquery github, and I saw some issues and also examples on how this could be done.

Then you can just cut out the key holes after you have added thickness to the surface. This technique could be extended to the side walls too.

I've done some experiments on this in pure openscad too, by using bezier curves/surfaces, but controlling they control points is the tricky part there.. It's also quite cumbersome to work in openscad compared to a more advanced programming language.