caps-lock.json

{
  "title": "Caps-Lock to ESC on tap, CTRL on hold.",
  "rules": [
    {
    "description": "Makes Caps-Lock behave like CTRL upon holding, ESC upon tap.",
    "manipulators": [
      {
      "from": {
        "key_code": "caps_lock",
        "modifiers": {
          "optional": [
            "any"
          ]
        }
      },
      "to": [
        {
        "key_code": "right_command"
      }
      ],
      "to_if_alone": [
        {
        "key_code": "escape"
      }
      ],
      "type": "basic"
    }
    ]
  }
  ]
}