Minila-like key mappings with left Cmd for Karabiner-Elements Complex Modifications Add Rules (~/.config/karabiner/assets/complex_modifications/minila.json)

minila.json

{
  "title": "Minila-like key mappings with left Cmd",
  "rules": [
    {
      "description": "Minila-like key mappings with left Cmd",
      "manipulators": [
        {
            "from": {
                "key_code": "s",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "left_arrow"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "d",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "down_arrow"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "e",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "up_arrow"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "f",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "right_arrow"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "m",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "delete_forward"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "j",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "help"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "k",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "home"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "comma",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "end"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "l",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "page_up"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "period",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "page_down"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "semicolon",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "delete_or_backspace"
                }
            ],
            "type": "basic"
        },
        {
            "from": {
                "key_code": "slash",
                "modifiers": {
                    "mandatory": [
                        "left_command"
                    ],
                    "optional": [
                        "any"
                    ]
                }
            },
            "to": [
                {
                    "key_code": "return_or_enter"
                }
            ],
            "type": "basic"
        }
      ]
    }
  ]
}