betterglobekey

betterglobekey replaces the stock Globe key behaviour for people who switch keyboard input sources often. A single press cycles within a collection of input sources and a double press moves between collections, starting from whichever source is active.

It runs as a background service, usually installed with Homebrew and configured in a YAML file; an optional companion app edits the configuration graphically. It needs Accessibility permission, and the Globe key must be set to do nothing in System Settings.