On macOS map 'M' to 'cmd' instead of 'alt' about vscode-emacs-friendly HOT 4 OPEN

{
  "title": "Personal Keyboard Rules",
  "rules": [
    {
      "description": "Set the Caps Lock to be the Escape key when tapped and the Control key when held.",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "caps_lock",
            "modifiers": {
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "key_code": "left_control"
            }
          ],
          "to_if_alone": [
            {
              "key_code": "escape"
            }
          ]
        }
      ]
    },
    {
      "description": "Set the Shift keys to be the left and right parenthesis when tapped and the Shift key when held.",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "left_shift"
          },
          "to": [
            {
              "key_code": "left_shift"
            }
          ],
          "to_if_alone": [
            {
              "key_code": "9",
              "modifiers": [
                "left_shift"
              ]
            }
          ]
        },
        {
          "type": "basic",
          "from": {
            "key_code": "right_shift"
          },
          "to": [
            {
              "key_code": "right_shift"
            }
          ],
          "to_if_alone": [
            {
              "key_code": "0",
              "modifiers": [
                "right_shift"
              ]
            }
          ]
        }
      ]
    },
    {
      "description": "Set the Tab key to Tab when tapped and Option when held.",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "tab",
            "modifiers": {
              "optional": [
                "any"
              ]
            }
          },
          "to": [
            {
              "key_code": "left_option"
            }
          ],
          "to_if_alone": [
            {
              "key_code": "tab"
            }
          ]
        }
      ]
    }
  ]
}