Yes, here’s the repo of the FM-tuner plugin:
Another sort of nice yet underground thing, that can’t find its way in the library due to inherent configuration idiosyncrasies and dependence on hardware.
Afaik there was a long-time PR waiting, and it looks like it was recently merged and migrated.
I got a rtl-sdr dongle a couple of years ago, it was a killer setup at first (I’m on Windows), but then it worked (with Rack v0.6). Still haven’t tried to build and setup the current master version, but I’d like to try if I find some time.