.calendar.vorne.Mo | . as $dict |
    keys[] | . as $key |
    $dict[$key] | to_entries |
        [
            .[],
            {key: "day", value: "Mo"},
            {key: "start", value: $key},
            {key: "age", value: ""},
            {key: "extern", value: false},
            {key: "duration", value: (($dict[$key].slots) * 15)}
        ] |
    from_entries | del(.slots)