The article links to a emarker reader [1]. This seems like something that milions of households should/will own. Do you know where can I buy a cheap and reliable one?
[1] https://www.reddit.com/r/UsbCHardware/comments/z2hncm/recent...
[1] https://www.reddit.com/r/UsbCHardware/comments/z2hncm/recent...