Hello @dhoinjo this is something people have been discussing on this thread also Adding Pure Data synths ....(and Csound?)
I am currently tinkering with CTLINs and yml files and trying to load a PD patch into my Zynthian but so far have not managed to make it work. I would be delighted to write a “for dummies like myself” guide to this process when I finally get it sorted, because there’s a lot of PD content out there.
Check out Automatonism https://www.automatonism.com/ which provides higher level abstractions (modules) to facilitate your PD patching process. I’d be delighted if I could get Automatonism patches to port into the Zyn, and delighted to share that knowledge.
Please check out the good advice from people way smarter than me in that other PD thread. Maybe you’ll have a breakthrough.