Hey Vincent. Organelle uses pure data patches. In theory all pd-patches can be used on the Zynthian, although there seem to be some hindrances here and there. However I know that pd-patches are again slightly modified to work on an Organelle. So you would need to reverse engineer organelle patches work in pd vanilla. And then modify them in a way again to work on Zynthian which is explained in the wiki.
Norns is again something completely different and is in itself again an OS with a soundengine based on supercollider. I already opened a thread previously since it is known that Norns can run on a raspberry pi. Norns on Zynthian Hardware