karabiner mac setup

alex-karabiner.json

{
    "title": "Caps Lock -> Esc/Ctrl | Arrow Keys -> NJKL | Home/PageUp/PageDown/End -> HUIO | Right Command -> Enter/Shift",
    "rules": [
        {
            "description": "Change caps_lock to control if pressed with other keys, to escape if pressed alone.",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "caps_lock",
                        "modifiers": {
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "left_control"
                        }
                    ],
                    "to_if_alone": [
                        {
                            "key_code": "escape"
                        }
                    ]
                }
            ]
        },
        {
            "description": "Ctrl + I/J/K/L to Arrow Keys",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "n",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "left_arrow"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "j",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "up_arrow"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "k",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "down_arrow"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "l",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "right_arrow"
                        }
                    ]
                }
            ]
        },
        {
            "description": "Ctrl + H/U/I/O to Home/Page Up/Page Down/End",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "h",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "home"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "u",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "page_up"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "i",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "page_down"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "o",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "end"
                        }
                    ]
                }
            ]
        },
        {
            "description": "Ctrl + P to Delete",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "p",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "delete_or_backspace"
                        }
                    ]
                }
            ]
        },
        {
            "description": "Change Left Command to Shift if pressed with other keys, to Enter if pressed alone.",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "right_command"
                    },
                    "to_if_alone": [
                        {
                            "key_code": "return_or_enter"
                        }
                    ],
                    "to": [
                        {
                            "key_code": "left_shift"
                        }
                    ]
                }
            ]
        }
    ]
}