Players in the space of e-paper Good e-reader: https://www.youtube.com/channel/UCHhy08xelXhKIOwgsFssaTQ My Deep Guide: https://www.youtube.com/channel/UCUox4vsU0kP2STRyN0zUNhw Ultimate Writer guy: https://boingboing.net/2020/04/09/open-design-for-an-e-ink-typew.html