Karabiner Mappings

custom-capslock.json

{
  "title": "Change caps_lock to Esc and Control",
  "rules": [
    {
      "description": "Post Esc if Caps is tapped, Control if held.",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "left_control",
            "modifiers": {
              "optional": ["any"]
            }
          },
          "to": [
            {
              "key_code": "left_control",
              "lazy": true
            }
          ],
          "to_if_alone": [
            {
              "key_code": "escape"
            }
          ]
        }
      ]
    }
  ]
}

custom-left_option.json

{
  "title": "left_option + hjkl to Arrow Keys Vim",
  "rules": [
    {
      "description": "left_option + hjkl to arrow keys Vim",
      "manipulators": [
        {
          "from": {
            "key_code": "h",
            "modifiers": {
              "mandatory": [
                "left_option"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "key_code": "left_arrow"
            }
          ],
          "type": "basic",
          "to_if_alone": [
            {
              "key_code": "left_option"
            }
          ]
        },
        {
          "from": {
            "key_code": "j",
            "modifiers": {
              "mandatory": [
                "left_option"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "key_code": "down_arrow"
            }
          ],
          "type": "basic",
          "to_if_alone": [
            {
              "key_code": "left_option"
            }
          ]
        },
        {
          "from": {
            "key_code": "k",
            "modifiers": {
              "mandatory": [
                "left_option"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "key_code": "up_arrow"
            }
          ],
          "type": "basic",
          "to_if_alone": [
            {
              "key_code": "left_option"
            }
          ]

        },
        {
          "from": {
            "key_code": "l",
            "modifiers": {
              "mandatory": [
                "left_option"
              ],
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "key_code": "right_arrow"
            }
          ],
          "type": "basic",
          "to_if_alone": [
            {
              "key_code": "left_option"
            }
          ]
        }
      ]
    }
  ]
}

custom-tab.json

{
  "title": "Tab or Option if hold",
  "rules": [
    {
      "description": "Tab or Option if hold",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "tab",
            "modifiers": {
              "optional": ["any"]
            }
          },
          "to": [
            {
              "key_code": "left_option",
              "lazy": true
            }
          ],
          "to_if_alone": [
            {
              "key_code": "tab"
            }
          ]
        }
      ]
    }
  ]
}

order-instructions.txt

The previous files are for the complext modifications section in Karabinier.

We also need to set a simple modificiation, which to set `caps_lock` -> `left_control` for this to work.

The order of the complex must of the following, otherwise some mapping will not work as expected:

Order from top to bottom in the Karabinier UI.

1. custom-capslock.json
2. custom-tab.json
3. custom-left_option.json

these files should be placed in `.config/karabiner/assets/complex_modifications/`