Here lie my karabiner configurations. Some interesting keybindings include:

• hold tab and a comprehensive numpad appears below the right hand
• press left and right arrow keys together to unlock an arrow launcher
  • now, any subsequent key press of the arrows will launch a specific app
    • i.e. tap up to open brave browser and hold up to open iterm
    • total of 8 configurable apps (tap, or tap and hold)
• many more miscellaneous modifications. check the json file.