Several years ago, I developed a theater reservation system, for which I needed a printer. As Boca seemed to be the best printer around for tickets, I looked for the printer driver for some kind of Unix, as the stuff I developed ran on MacOS or any other Unix (It was developed in Java/WebObjects). Unfortunately, there was none. So I called the dutch distributor, got a printer on loan, and the day before I had to return it back, I finally nailed the Assembler and bitswapping that I needed to get the thing running the way I wanted. Later on I was contacted by Boca Systems who asked if I would be willing to develop the driver for a variety of Unixes and MacOS. Now, about 15 years later, I am still involved from time to time in updating the driver. Last time around I had to make sure the printerdriver worked on Mac OS 10.15, also known as Catalina.