I wanted to build a split Ergo from scratch, with a slightly more aggressive stagger than the Lily58 style board I had previously built. I also wanted to have a stabilized 2U spacebar and some RGB. The part that was most time-consuming was definitely designing the case in CAD and getting the switches and stabilizers to fit properly. Fortunately, it’s all pretty well documented so there wasn’t too much trial and error involved. Overall, it turned out pretty well!
Isn’t it great to make your own design that has the features you want in it. I found myself wanting a lot more aggressive stagger from what is common (my ‘Q’ is a full key-length down from where ‘E’ is. I mostly came up with by just looking at my fingers.
To mirror another commenter, perhaps consider doing a PCB next time. I did it after my first build, and am very happy with the result.