My June 2018 karabiner.json file

karabiner.json

{
  "global": {
    "check_for_updates_on_startup": true,
    "show_in_menu_bar": true,
    "show_profile_name_in_menu_bar": false
  },
  "profiles": [{
    "complex_modifications": {
      "parameters": {
        "basic.simultaneous_threshold_milliseconds": 50,
        "basic.to_delayed_action_delay_milliseconds": 500,
        "basic.to_if_alone_timeout_milliseconds": 800,
        "basic.to_if_held_down_threshold_milliseconds": 100
      },
      "rules": [{
          "description": "fn launcher for Apps (Dave)",
          "manipulators": [{
              "from": {
                "key_code": "fn"
              },
              "to_if_held_down": [{
                "set_variable": {
                  "name": "launcher_mode",
                  "value": 1
                }
              }],
              "to_after_key_up": [{
                "set_variable": {
                  "name": "launcher_mode",
                  "value": 0
                }
              }],
              "to_if_alone": [{
                "key_code": "fn"
              }],
              "type": "basic"
            },
            {
              "conditions": [{
                "name": "launcher_mode",
                "type": "variable_if",
                "value": 1
              }],
              "from": {
                "key_code": "l"
              },
              "to": [{
                "shell_command": "open '/Applications/iTerm.app'"
              }],
              "type": "basic"
            },
            {
              "conditions": [{
                "name": "launcher_mode",
                "type": "variable_if",
                "value": 1
              }],
              "from": {
                "key_code": "m"
              },
              "to": [{
                "shell_command": "open '/Applications/Mail.app'"
              }],
              "type": "basic"
            },
            {
              "conditions": [{
                "name": "launcher_mode",
                "type": "variable_if",
                "value": 1
              }],
              "from": {
                "key_code": "c"
              },
              "to": [{
                "shell_command": "open '/Applications/Google Chrome.app'"
              }],
              "type": "basic"
            },
            {
              "conditions": [{
                "name": "launcher_mode",
                "type": "variable_if",
                "value": 1
              }],
              "from": {
                "key_code": "f"
              },
              "to": [{
                "shell_command": "open '/Applications/Typora.app'"
              }],
              "type": "basic"
            }
          ]
        },
        {
          "description": "Change caps_lock to control if pressed with other keys, to delete_or_backspace if alone.",
          "manipulators": [{
            "from": {
              "key_code": "caps_lock",
              "modifiers": {
                "optional": [
                  "any"
                ]
              }
            },
            "to": [{
              "key_code": "left_control"
            }],
            "to_if_alone": [{
              "hold_down_milliseconds": 50,
              "key_code": "delete_or_backspace"
            }],
            "type": "basic"
          }]
        },
        {
          "description": "Toggle caps_lock by pressing left_shift + right_shift at the same time",
          "manipulators": [{
              "from": {
                "key_code": "left_shift",
                "modifiers": {
                  "mandatory": [
                    "right_shift"
                  ],
                  "optional": [
                    "caps_lock"
                  ]
                }
              },
              "to": [{
                "key_code": "caps_lock"
              }],
              "to_if_alone": [{
                "key_code": "left_shift"
              }],
              "type": "basic"
            },
            {
              "from": {
                "key_code": "right_shift",
                "modifiers": {
                  "mandatory": [
                    "left_shift"
                  ],
                  "optional": [
                    "caps_lock"
                  ]
                }
              },
              "to": [{
                "key_code": "caps_lock"
              }],
              "to_if_alone": [{
                "key_code": "right_shift"
              }],
              "type": "basic"
            }
          ]
        }
      ]
    },
    "devices": [],
    "fn_function_keys": [{
        "from": {
          "key_code": "f1"
        },
        "to": {
          "key_code": "display_brightness_decrement"
        }
      },
      {
        "from": {
          "key_code": "f2"
        },
        "to": {
          "key_code": "display_brightness_increment"
        }
      },
      {
        "from": {
          "key_code": "f3"
        },
        "to": {
          "key_code": "mission_control"
        }
      },
      {
        "from": {
          "key_code": "f4"
        },
        "to": {
          "key_code": "launchpad"
        }
      },
      {
        "from": {
          "key_code": "f5"
        },
        "to": {
          "key_code": "illumination_decrement"
        }
      },
      {
        "from": {
          "key_code": "f6"
        },
        "to": {
          "key_code": "illumination_increment"
        }
      },
      {
        "from": {
          "key_code": "f7"
        },
        "to": {
          "key_code": "rewind"
        }
      },
      {
        "from": {
          "key_code": "f8"
        },
        "to": {
          "key_code": "play_or_pause"
        }
      },
      {
        "from": {
          "key_code": "f9"
        },
        "to": {
          "key_code": "fastforward"
        }
      },
      {
        "from": {
          "key_code": "f10"
        },
        "to": {
          "key_code": "mute"
        }
      },
      {
        "from": {
          "key_code": "f11"
        },
        "to": {
          "key_code": "volume_decrement"
        }
      },
      {
        "from": {
          "key_code": "f12"
        },
        "to": {
          "key_code": "volume_increment"
        }
      }
    ],
    "name": "Default profile",
    "selected": true,
    "simple_modifications": [{
        "from": {
          "key_code": "right_command"
        },
        "to": {
          "key_code": "page_up"
        }
      },
      {
        "from": {
          "key_code": "right_option"
        },
        "to": {
          "key_code": "page_down"
        }
      }
    ],
    "virtual_hid_keyboard": {
      "caps_lock_delay_milliseconds": 0,
      "country_code": 0,
      "keyboard_type": "ansi"
    }
  }]
}