I want to sew a dress for an occasion but I also keep browsing bra(lette) patterns, and I keep thinking about making bras for a trans woman in my life.
Which are two totally different challenges.
I have a hunch that the "large ribcage, small cups" population is even more underserved than the "small band size, big cups" part of the spectrum. I used to be in that latter part of the spectrum until ny body changed a couple years ago.