Karabiner Elements Config

karabiner.json

{
  "profiles": [
    {
      "complex_modifications": {
        "rules": [
          {
            "manipulators": [
              {
                "description": "Change caps_lock to control when used as modifier, escape when used alone",
                "from": {
                  "key_code": "caps_lock",
                  "modifiers": {
                    "optional": [
                      "any"
                    ]
                  }
                },
                "to": [
                  {
                    "key_code": "left_control"
                  }
                ],
                "to_if_alone": [
                  {
                    "key_code": "escape",
                    "modifiers": {
                      "optional": [
                        "any"
                      ]
                    }
                  }
                ],
                "type": "basic"
              },
              {
                "description": "Change left_control to command+control+option.",
                "from": {
                  "key_code": "left_control",
                  "modifiers": {
                    "optional": [
                      "any"
                    ]
                  }
                },
                "to": [
                  {
                    "key_code": "left_control",
                    "modifiers": [
                      "left_command",
                      "left_option"
                    ]
                  }
                ],
                "type": "basic"
              }
            ]
          }
        ]
      }
    }
  ]
}