Hi @exiannyc, I think using a zip file is the best way to go. This allows you to include subpatches as well as a YAML config file to map midi controls to the zynthian. Here’s an old post explaining the process. Adding Pure Data synths ....(and Csound?)
You can search this forum for “PD Patch” to find more PD patches prepared for the zynthian. Some are already included in the Zynthian image file and some are not. You can study those files to get an idea of how they work with midi and zynthian controls.