I have never tried anything complicated, but the home improvement store close to me, I can bring a thing of wood and they will make cuts to them along certain dimensions for like 10 cents a cut. I don't know if that's an offering in the US but to be honest from an ecological and logistical standpoint "let's have people be sent bespoke planks of wood" feels like a thing with a good amount of externalities compared to "you go to Home Depot and ask for cuts there"