Hi,
Not a silly question at all.
At the moment, we only sell the books as physical cartridges. The project was designed as something tangible, meant to be inserted, held, and collected. That physical interaction is a fundamental part of the experience.
We completely understand the shipping issue, though. If we ever decide to offer a digital version, we’ll announce it publicly.
And thank you so much for your kind words. It really means a lot to us to see this kind of enthusiasm, especially about the Japanese classics. That support genuinely keeps the project moving forward.