Karabiner config

left command -> left control
left control -> left command

{
    "description": "Forward Delete → Partial Screenshot (Shift + Cmd + 4)",
    "manipulators": [
        {
            "from": { "key_code": "delete_forward" },
            "to": [
                {
                    "key_code": "4",
                    "modifiers": ["left_shift", "left_command"]
                }
            ],
            "type": "basic"
        }
    ]
}

{
    "description": "Remap Home → Delete Forward",
    "manipulators": [
        {
            "from": { "key_code": "home" },
            "to": [{ "key_code": "delete_forward" }],
            "type": "basic"
        }
    ]
}

{
    "description": "Page Up → Home",
    "manipulators": [
        {
            "from": { "key_code": "page_up" },
            "to": [{ "key_code": "home" }],
            "type": "basic"
        }
    ]
}

{
    "description": "Page Down → End",
    "manipulators": [
        {
            "from": { "key_code": "page_down" },
            "to": [{ "key_code": "end" }],
            "type": "basic"
        }
    ]
}