All applications are MacOS only - - take into account that by default it won't allow opening applications from unknown developers: open the "Security & Privacy" pane from System Preferences
If you like listening to the radio, OffAir is for you. It was created many years ago and most likely it will work. If it doesn’t, send me a note.
Instructions: the left dial controls the level, the right dial changes the tuning. The [auto] button will set the tuning to automatic.
This application is built with Max from Cycling74. Should you have an iPad with Mira installed on it, then you can use that as a control device for Havoxicon.
Havoxicon is free, and in it, the source code (at least, part of it) is included. You find it when you choose About Havoxicon from the menu.