Custom mapping in MAX OS X

karabiner-readme.md

Custom keyboard mapping

• Re-Map Grave key to Esc for fucking touch bar in the Macbook Pro.
• Change second display brightness and contrast with fn + 3 to 7.
• Launcher applications: Activity Monitor, Firefox, iTerm and Spotify.
• Select area to take screenshot.
• Lock session.
• Paste without format.

Requirements

• Karabiner-Elements
• DDC monitor controls

Instructions

First, do you need download and install Karabiner-Elements and then modify custom config, edit the follow file with the .json example

vim .config/karabiner/karabiner.json

For more example, please visit here.

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,
                    "mouse_motion_to_scroll.speed": 100
                },
                "rules": [
                    {
                        "description": "Escape",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from":
                                    { "key_code": "grave_accent_and_tilde" },
                                "to":
                                    [ { "key_code": "escape" } ]
                            }
                        ]
                    },
                    {
                        "description": "[fn + 3-7] Second Display brightness and contrast",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "3",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "/usr/local/bin/ddcctl -d 1 -w 10 -b 30 -c 40"
                                    }
                                ]
                            },
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "4",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "/usr/local/bin/ddcctl -d 1 -w 10 -b 40 -c 50"
                                    }
                                ]
                            },
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "5",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "/usr/local/bin/ddcctl -d 1 -w 10 -b 50 -c 60"
                                    }
                                ]
                            },
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "6",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "/usr/local/bin/ddcctl -d 1 -w 10 -b 60 -c 70"
                                    }
                                ]
                            },
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "7",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "/usr/local/bin/ddcctl -d 1 -w 10 -b 70 -c 80"
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "description": "[fn + a] App launcher: Activity Monitor",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "a",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "open -a '/System/Applications/Utilities/Activity Monitor.app'"
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "description": "[fn + f] App launcher: Firefox",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "f",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "open -a '/Applications/Firefox.app'"
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "description": "[fn + t] App launcher: iTerm2",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "t",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "open -a '/Applications/iTerm.app'"
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "description": "[fn + s] App launcher: Spotify",
                        "manipulators": [
                            {
                                "type": "basic",
                                "from": {
                                    "key_code": "s",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "shell_command": "open -a '/Applications/Spotify.app'"
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "description": "[fn + c] Select area to take screenshot",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "c",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": {
                                    "key_code": "4",
                                    "modifiers": [
                                        "left_command",
                                        "left_shift"
                                    ]
                                },
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "[fn + l] Lock session",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "l",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": {
                                    "key_code": "q",
                                    "modifiers": [
                                        "left_command",
                                        "left_control"
                                    ]
                                },
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "[fn + v] Paste without format",
                        "manipulators": [
                            {
                                "from": {
                                    "key_code": "v",
                                    "modifiers": {
                                        "mandatory": [
                                            "fn"
                                        ]
                                    }
                                },
                                "to": {
                                    "key_code": "v",
                                    "modifiers": [
                                        "left_command",
                                        "left_shift",
                                        "left_option"
                                    ]
                                },
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "Mouse button4 → command + ]",
                        "manipulators": [
                            {
                                "from": {
                                    "pointing_button": "button4"
                                },
                                "to": {
                                    "key_code": "close_bracket",
                                    "modifiers": [
                                        "left_command"
                                    ]
                                },
                                "type": "basic"
                            }
                        ]
                    },
                    {
                        "description": "Mouse button5 → command + [",
                        "manipulators": [
                            {
                                "from": {
                                    "pointing_button": "button5"
                                },
                                "to": {
                                    "key_code": "open_bracket",
                                    "modifiers": [
                                        "left_command"
                                    ]
                                },
                                "type": "basic"
                            }
                        ]
                    }
                ]
            }
        }
    ]
}