Karabiner Elements is very powerful and low level (so struggles with higher-level concepts like inserting a symbol or showing some GUI) Keyboard Maestro has a

Karabiner Elements is very powerful and low level (so struggles with higher-level concepts like inserting a symbol or showing some GUI) Keyboard Maestro has a great interactive UI, and also built-in UI panels that are also great as "cheat sheets" BetterTouchTool is superb in touchpad/mouse control (but can also do shortctuts)