In the mid oughts I was doing point of sale gift card processing, and most was still dial up. Had to write something like socat for incoming connections, then l

In the mid oughts I was doing point of sale gift card processing, and most was still dial up. Had to write something like socat for incoming connections, then later port to C. I seriously considered building for DOS with a more modern compiler. But it wouldn't have been justified and couldn't bring myself to seriously try it. It's interesting how many tools there are now to make it easier.