One of the most crucial pieces of information one needs, to determine whether the GGtag is suitable for a project, is the full physical dimensions (width, height, depth) of both the screen and the complete device. Currently, I can only find the dimensions of the screen by digging into hardware/epd-datasheet.pdf, and I cannot find the dimensions of the complete device at all.
These numbers should be in the first few paragraphs of the README.