jq filter array of objects that have an inner array with some entries that matches the given array

gistfile1.txt

{
    "mirrors":
    [
        {
            "type": "A",
            "platforms":
            [
                "entry1"
            ]
        },
        {
            "type": "B",
            "platforms":
            [
                "entry2"
            ]
        },
        {
            "type": "C",
            "platforms":
            [
                "entry1",
                "entry2"
            ]
        }
    ]
}

jq -rc --arg plat "entry1 entry2" '[.mirrors[]|select([.]|.[].platforms|map([.])|.[] | inside([$plat]))]' < config.json