I started working on a zine with Decker 1.64 installed and when I went to test the exports, the top row of pages were not flipped upside down as they should be, and trying to export a GIF in native Decker just crashed the program. Updating to Decker 1.65 fixed both problems. So... just a heads up to make sure Decker is updated so you don't end up with a broken HTML file.