This is a command-line tool used to quickly reconnect my Sony WH-1000XM3 headphones to my MacBook Pro.
I've noticed that after this model of headphones are paired to a MacBook, when they reconnect the volume will be set very low (even if you increase the system volume to 100%). Disconnecting and reconnecting the Bluetooth connection appears to fix the problem. As a result, I wrote this command line tool to do this faster.
You'll need the full XCode installed to build :(
make
make install
Add /usr/local/bin to your $PATH if it's not already.
Then you can run this command from any terminal with sony-reconnect.