Schematics will be available, but not board layout, at least not initially.
However, note that this is NOT really a build-it-yourself design. It uses a high-desity 4-layer PCB, only 1 mm thick and some components not commonly available.
While I may sell some of the parts used on the boards, it will NOT be sold as a kit, and I do not plan to sell the PCB alone either.
This is the plan now, but who knows, it may change.