Karabiner configuration file for Motospeed CK62 mechanical keyboard

motospeed_ck62.json

{
    "title": "Motospeed CK62 nearly as Apple keyboard",
    "rules": [
        {
            "description": "Modifiers position: Left Ctrl Alt/Option Command - Right Command Alt/Option Fn (CK62 Fn key is unused)",
            "manipulators": [
                {
                    "type": "basic",
                    "from": {
                        "key_code": "application"
                    },
                    "to": [
                        {
                            "key_code": "right_option"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "left_command"
                    },
                    "to": [
                        {
                            "key_code": "left_option"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "left_option"
                    },
                    "to": [
                        {
                            "key_code": "left_command"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "right_control"
                    },
                    "to": [
                        {
                            "apple_vendor_top_case_key_code": "keyboard_fn"
                        }
                    ]
                },
                {
                    "type": "basic",
                    "from": {
                        "key_code": "right_option"
                    },
                    "to": [
                        {
                            "key_code": "right_command"
                        }
                    ]
                }
            ]
        },
        {
            "description": "Arrow keys using control left + right modifiers and /",
            "manipulators": [
                {
                    "from": {
                        "key_code": "slash",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "up_arrow"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "right_gui",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "left_arrow"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "right_alt",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "down_arrow"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "fn",
                        "modifiers": {
                            "mandatory": [
                                "left_control"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "right_arrow"
                        }
                    ],
                    "type": "basic"
                }
            ]
        },
        {
            "description": "Media control keys using 1..0 - = and Left Control + FN",
            "manipulators": [
                {
                    "from": {
                        "key_code": "1",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "display_brightness_decrement"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "2",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "display_brightness_increment"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "3",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "mission_control"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "4",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "launchpad"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "5",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "illumination_decrement"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "6",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "illumination_increment"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "7",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "rewind"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "8",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "play_or_pause"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "9",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "fastforward"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "0",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "mute"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "hyphen",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ],
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "volume_decrement"
                        }
                    ],
                    "type": "basic"
                },
                {
                    "from": {
                        "key_code": "equal_sign",
                        "modifiers": {
                            "mandatory": [
                                "left_control",
                                "fn"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "volume_increment"
                        }
                    ],
                    "type": "basic"
                }
            ]
        },
        {
            "description": "Change right_command to left_arrow if pressed alone",
            "manipulators": [
                {
                    "from": {
                        "key_code": "right_gui",
                        "modifiers": {
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "right_gui"
                        }
                    ],
                    "to_if_alone": [
                        {
                            "key_code": "left_arrow"
                        }
                    ],
                    "type": "basic"
                }
            ]
        },
        {
            "description": "Change fn to right_arrow if pressed alone",
            "manipulators": [
                {
                    "from": {
                        "key_code": "fn",
                        "modifiers": {
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "fn"
                        }
                    ],
                    "to_if_alone": [
                        {
                            "key_code": "right_arrow"
                        }
                    ],
                    "type": "basic"
                }
            ]
        },
        {
            "description": "Change right_option to down_arrow if pressed alone",
            "manipulators": [
                {
                    "from": {
                        "key_code": "right_alt",
                        "modifiers": {
                            "optional": [
                                "any"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "right_alt"
                        }
                    ],
                    "to_if_alone": [
                        {
                            "key_code": "down_arrow"
                        }
                    ],
                    "type": "basic"
                }
            ]
        },
        {
            "description": "Control + Esc to `",
            "manipulators": [
                {
                    "from": {
                        "key_code": "escape",
                        "modifiers": {
                            "mandatory": [
                                "control"
                            ]
                        }
                    },
                    "to": [
                        {
                            "key_code": "grave_accent_and_tilde",
                            "modifiers": []
                        }
                    ],
                    "type": "basic"
                }
            ]
        }
    ]
}

• Install Karabiner
• Copy this file to ~/.config/karabiner/assets/complex_modifications

A few extra notes:

• The layout is "optimized" for English international where ' vowel places accented vowels
• It tries to emulate the Apple keyboard layout, so if you're using this keyboard with a Mac, my humble advice is to take the physical right modifier keys from the CK62 and replace them in the following order: Control (will act as a Command Key, just didn't have an extra one) , Alt, Fn, Menu (Menu is now the original CK62 Fn key)
• The native Fn key in the keyboard will not be mapped to real keys or key combinations, in my case I use it only for pairing Bluetooth, or change the light pattern.
• Menu key is changed to act as Right Alt/Option
• F1 to F12 keys require the FN + number keys to be pressed (remember that the FN key is now placed where the Right Ctrl key was)
• Extra F1..12 functions (as the ones in the Apple Keyboard) require the F1..12 combination + Left Control.
• Control + Esc will show a ` . Most modifications also include a Shift + Esc for the ~ kay, but you can get the same using Right Alt + n + space

Remember that when you bought this keyboard you opted for a 60% keyboard lacking from many keys, so there may be many kay shortcuts in many apps that won't work as usual. This is not the keyboard's fault.

And yes, I would also like that the Fn key worked out of the box but ...