function float_hack {
    scratch_tag=$((1 << $1))

    riverctl spawn "$4"
    sleep 0.2
    riverctl resize horizontal -$2
    riverctl resize vertical -$3
    riverctl snap down
    riverctl set-view-tags ${scratch_tag}

    # Set spawn tagmask to ensure new windows don't have the scratchpad tag unless
    # explicitly set.
    all_but_scratch_tag=$(( ((1 << 32) - 1) ^ $scratch_tag ))
    riverctl spawn-tagmask ${all_but_scratch_tag}
}