I'm not experienced enough to get this running in PD (using PD vanilla or PDl2ork on mac OSX)
https://github.com/tkzic/pd-rtlsdr

I tried (for hours) what's written here, but can't get it to run.
https://forum.critterandguitari.com/t/sdr-software-defined-radio/2010/26

All help welcome!

@Floris It probably still needs to be run in Pd Extended (32-bit)
Although someone says they have compiled it against Vanilla in the thread, it might still need to be a 32-bit version given the age of the external and its dependencies.
Pd Extended is still available here.......... http://puredata.info/downloads/pd-extended .... but you might not be able to run it on a recent 64-bit only Mac.
David.

yes, can't run extended here. (64 bit osx Catalina)
I can run PDl2ork but still can't create the object.

a step by step compiling for dummies would come in handy

@Floris I am a very experienced windows dummy........ so I don't even try.
But for Linux it should be simple using "make" with the makefile provided.
Have you tried this one?.........https://github.com/tkzic/pd-rtlsdr/tree/master/src/pd/macOS/rtlsdr~
It might not work as the dependencies will most likely be wrong for your system.
Maybe email the author through the GitHub page?...... at the bottom of the "ReadMe"......
David.

I tried the osx make file, but probably I did something wrong there.
The author was mailed yesterday.

@Floris I doubt that its your fault.
A lot has changed since 2014.
David.