Use a MIDI foot controller as an extra keyboard for your Mac. fcbnerd connects to your MIDI sources and either runs a shell command when a footswitch or pedal sends a message you've bound, or prints one JSON object per line for every message so another program can decide what a stomp means. $ fcbnerd -q --bind ' 1:20:127=open ~/Downloads ' --bind ' pc:1:0=say hello ' Or stream everything for another program to handle: $ fcbnerd {"type":"connected","source":"UM-ONE","time":"2026-09-14T20:01:00.120Z"} {"type":"pc","channel":1,"program":0,"source":"UM-ONE","time":"2026-09-14T20:01:02.345Z"} {"type":"cc","channel":1,"controller":30,"value":84,"source":"UM-ONE","time":"2026-09-14T20:01:03.910Z"} Built for the Behringer FCB1010, but nothing in it is FCB1010-specific: any CoreMIDI source works. Why a command-line tool instead of an app Anything that acts on your Mac, like pressing keys or running scripts, needs permissions that sandboxed apps can't get, and every user wants a different set of actions anyway.…