Each 7-11 in Japan has one of those big business multicopiers. You can copy, print, scan, fax. The printing is sweet because it does photo printing on glossy paper, but also laser printing up to A3 size or even making custom post cards. They also have databases of paid content like sheet music and stuff you can print. I prefer Lawson/FamilyMart though since they also have sticker printing!
The Affinity Suite started out as macOS-only apps which later got ported to Windows so I would be very surprised to hear they had any substantial portion written in .net