Best place is to use the OpenFrameworks forum.
ofxPd provides a wrapper for libpd, but does not provide the audio interface, that is handled by OF.OF uses RtAudio in the backend I believe so, if RtAudio is compiled with Jack support, it *should* work in theory. One issue with OF is that, as it’s a more visually focused framework, the built in sound options are relatively limited, ie. device control etc.