Karabiner config

karabiner.edn

{;; applciations can be used as a condition, where the key maps
 ;; only works in those apps
 :applications {:apps-for-emacs-movements ["^md\\.obsidian$"
                                           "^org\\.mozilla\\.firefox$"
                                           "^com\\.tinyspeck\\.slackmacgap$"]}

 ;; with tos you can predefine 'to' keypresses to easily parse them
 :tos {;; in order for OSX to register a caps lock press, it has to be held for a little under 100ms
       :press_escape {:key :escape :hold_down_ms 100}}

 :main [{:des "Override caps lock"
         :rules [;;Caps lock to Escape on single press, Control on hold
                 [:##caps_lock ;; FROM caps lock with no or any modifiers
                  :left_control ;; TO left control
                  nil ;; with no conditionals
                  {:alone :press_escape} ;; OPTIONS: if pressed alone, press escape, but hold it for 100ms
                  ]]}

        {:des "Control p/n to up/down on Obsidian"
         :rules [[:!Tp :up_arrow :apps-for-emacs-movements]
                 [:!Tn :down_arrow :apps-for-emacs-movements]]}

        {:des "Quit application by pressing command-q twice"
         :rules [[:!Cq :!Cq ["command-q" 1]]
                 [:!Cq
                  [[:noti :cmdq "Press ⌘-q again to Quit"] ["command-q" 1]]
                  nil
                  {:delayed {:invoked [[:noti :cmdq] ["command-q" 0]]
                             :canceled [[:noti :cmdq] ["command-q" 0]]}
                   :params {:delay 700}}]]}]}

;; References
;; https://gist.github.com/nikolai-cc/02f6b070972840323ae355ef847e91a6

;; !  | means mandatory
;; #  | means optional
;; C  | left_command
;; T  | left_control
;; O  | left_option
;; S  | left_shift
;; F  | fn
;; Q  | right_command
;; W  | right_control
;; E  | right_option
;; R  | right_shift
;; P  | caps_lock
;; !! | mandatory command + control + optional + shift (hyper)
;; ## | optional any

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" : 1000,
        "basic.to_if_held_down_threshold_milliseconds" : 500
      },
      "rules" : [ {
        "description" : "Override caps lock",
        "manipulators" : [ {
          "to_if_alone" : [ {
            "key_code" : "escape",
            "hold_down_milliseconds" : 100
          } ],
          "from" : {
            "key_code" : "caps_lock",
            "modifiers" : {
              "optional" : [ "any" ]
            }
          },
          "to" : [ {
            "key_code" : "left_control"
          } ],
          "type" : "basic"
        } ]
      }, {
        "description" : "Control p/n to up/down on Obsidian",
        "manipulators" : [ {
          "from" : {
            "key_code" : "p",
            "modifiers" : {
              "mandatory" : [ "left_control" ]
            }
          },
          "to" : [ {
            "key_code" : "up_arrow"
          } ],
          "conditions" : [ {
            "type" : "frontmost_application_if",
            "bundle_identifiers" : [ "^md\\.obsidian$", "^org\\.mozilla\\.firefox$", "^com\\.tinyspeck\\.slackmacgap$" ]
          } ],
          "type" : "basic"
        }, {
          "from" : {
            "key_code" : "n",
            "modifiers" : {
              "mandatory" : [ "left_control" ]
            }
          },
          "to" : [ {
            "key_code" : "down_arrow"
          } ],
          "conditions" : [ {
            "type" : "frontmost_application_if",
            "bundle_identifiers" : [ "^md\\.obsidian$", "^org\\.mozilla\\.firefox$", "^com\\.tinyspeck\\.slackmacgap$" ]
          } ],
          "type" : "basic"
        } ]
      }, {
        "description" : "Quit application by pressing command-q twice",
        "manipulators" : [ {
          "from" : {
            "key_code" : "q",
            "modifiers" : {
              "mandatory" : [ "left_command" ]
            }
          },
          "to" : [ {
            "key_code" : "q",
            "modifiers" : [ "left_command" ]
          } ],
          "conditions" : [ {
            "name" : "command-q",
            "value" : 1,
            "type" : "variable_if"
          } ],
          "type" : "basic"
        }, {
          "to_delayed_action" : {
            "to_if_invoked" : [ {
              "set_notification_message" : {
                "id" : "cmdq",
                "text" : ""
              }
            }, {
              "set_variable" : {
                "name" : "command-q",
                "value" : 0
              }
            } ],
            "to_if_canceled" : [ {
              "set_notification_message" : {
                "id" : "cmdq",
                "text" : ""
              }
            }, {
              "set_variable" : {
                "name" : "command-q",
                "value" : 0
              }
            } ]
          },
          "parameters" : {
            "basic.to_delayed_action_delay_milliseconds" : 700
          },
          "from" : {
            "key_code" : "q",
            "modifiers" : {
              "mandatory" : [ "left_command" ]
            }
          },
          "to" : [ {
            "set_notification_message" : {
              "id" : "cmdq",
              "text" : "Press ⌘-q again to Quit"
            }
          }, {
            "set_variable" : {
              "name" : "command-q",
              "value" : 1
            }
          } ],
          "type" : "basic"
        } ]
      } ]
    },
    "devices" : [ ],
    "fn_function_keys" : [ {
      "from" : {
        "key_code" : "f1"
      },
      "to" : [ {
        "apple_vendor_keyboard_key_code" : "brightness_down"
      } ]
    }, {
      "from" : {
        "key_code" : "f2"
      },
      "to" : [ {
        "apple_vendor_keyboard_key_code" : "brightness_up"
      } ]
    }, {
      "from" : {
        "key_code" : "f3"
      },
      "to" : [ {
        "apple_vendor_keyboard_key_code" : "mission_control"
      } ]
    }, {
      "from" : {
        "key_code" : "f4"
      },
      "to" : [ {
        "apple_vendor_keyboard_key_code" : "spotlight"
      } ]
    }, {
      "from" : {
        "key_code" : "f5"
      },
      "to" : [ {
        "consumer_key_code" : "dictation"
      } ]
    }, {
      "from" : {
        "key_code" : "f6"
      },
      "to" : [ {
        "key_code" : "f6"
      } ]
    }, {
      "from" : {
        "key_code" : "f7"
      },
      "to" : [ {
        "consumer_key_code" : "rewind"
      } ]
    }, {
      "from" : {
        "key_code" : "f8"
      },
      "to" : [ {
        "consumer_key_code" : "play_or_pause"
      } ]
    }, {
      "from" : {
        "key_code" : "f9"
      },
      "to" : [ {
        "consumer_key_code" : "fast_forward"
      } ]
    }, {
      "from" : {
        "key_code" : "f10"
      },
      "to" : [ {
        "consumer_key_code" : "mute"
      } ]
    }, {
      "from" : {
        "key_code" : "f11"
      },
      "to" : [ {
        "consumer_key_code" : "volume_decrement"
      } ]
    }, {
      "from" : {
        "key_code" : "f12"
      },
      "to" : [ {
        "consumer_key_code" : "volume_increment"
      } ]
    } ],
    "name" : "Default",
    "parameters" : {
      "delay_milliseconds_before_open_device" : 1000
    },
    "selected" : true,
    "simple_modifications" : [ ],
    "virtual_hid_keyboard" : {
      "country_code" : 0,
      "indicate_sticky_modifier_keys_state" : true,
      "mouse_key_xy_scale" : 100
    }
  } ]
}