karabiner.json

{
  "global": {
    "check_for_updates_on_startup": true,
    "show_in_menu_bar": true,
    "show_profile_name_in_menu_bar": false
  },
  "profiles": [
    {
      "complex_modifications": {
        "rules": [
          {
            "manipulators": [
              {
                "description": "caps_lock to ctrl, caps_lock to esc",
                "from": {
                  "key_code": "caps_lock",
                  "modifiers": {
                    "optional": [
                      "any"
                    ]
                  }
                },
                "to": [
                  {
                    "key_code": "left_control"
                  }
                ],
                "to_if_alone": [
                  {
                    "key_code": "escape"
                  }
                ],
                "type": "basic"
              }
            ]
          }
        ]
      },
      "devices": [],
      "name": "Karabiner",
      "selected": true,
      "simple_modifications": {},
      "virtual_hid_keyboard": {
        "caps_lock_delay_milliseconds": 0,
        "keyboard_type": "ansi"
      }
    }
  ]
}