Reading I found this: https://reviews.freebsd.org/D3778 which is a bluetooth frontend, should be included with 12.1. I am sure NomadBSD 1.3.x is based on 12.x which should included such script. Last project I helped before I gave up based on 12.x yet they screamed when I said it was based on it and they said it was a while new OS, not really sure how the backend in X and the front in Y and it’s Z but ok.
Man page for the above script looks promising.