Change Left Control + J to kana (for Karabiner-Elements)

change-left-control-j-to-kana.json

{
  "title": "Change Left Control+J to kana",
  "rules": [
    {
      "description": "Change Left Control+J to kana",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "j",
            "modifiers": {
              "mandatory": [
                "left_control"
              ]
            }
          },
          "to": [
            {
              "key_code": "japanese_kana"
            }
          ]
        }
      ]
    }
  ]
}

https://genesy.github.io/karabiner-complex-rules-generator/#eyJ0aXRsZSI6IkNoYW5nZSBMZWZ0IENvbnRyb2wrSiB0byBrYW5hIiwicnVsZXMiOlt7ImRlc2NyaXB0aW9uIjoiQ2hhbmdlIExlZnQgQ29udHJvbCtKIHRvIGthbmEiLCJtYW5pcHVsYXRvcnMiOlt7InR5cGUiOiJiYXNpYyIsImZyb20iOnsia2V5X2NvZGUiOiJqIiwibW9kaWZpZXJzIjp7Im1hbmRhdG9yeSI6WyJsZWZ0X2NvbnRyb2wiXX19LCJ0byI6W3sia2V5X2NvZGUiOiJqYXBhbmVzZV9rYW5hIn1dfV19XX0=