diff --git a/res/miracle-wfdctl-demo b/res/miracle-wfdctl-demo
deleted file mode 100755
index b89e31f..0000000
--- a/res/miracle-wfdctl-demo
+++ /dev/null
@@ -1,216 +0,0 @@
-#!/bin/bash
-PS4="\e[34m> ${0##*/}:\e[0m "
-set -x
-set -e
-
-if (( $# < 1 )); then
-    echo Usage: ${0##*/} link-index peer-p2p-mac [nm-link-index]
-    echo        eg. sudo ${0##*/} 3 ac:a2:13:6e:f8:2f
-    echo        if the index of WNIC in wifid is different from NM, then
-    echo        eg. sudo ${0##*/} 4 ac:a2:13:6e:f8:2f 3
-    exit 1
-fi
-
-if [[ ${#2} != 17 ]]; then
-    echo Invalid peer-p2p-mac: $2
-    exit 1
-fi
-
-# this wfd_subelems has no ID (00, device info)
-wfd_subelems=000600111c4400c8
-link_index="_3${1:0:1}${1:1}"
-peer_id="${2//:/_3a}_40$1"
-
-if [[ -z "$3" ]]; then
-    nm_link_index="$1"
-else
-    nm_link_index="$3"
-fi
-
-# $1: service
-# $2: object
-# $3: interface
-# $4: member
-# $5: property value
-wait_prop_change()
-{
-    for ((i=0; i<60; i++)); do
-        read -a cols < <(busctl get-property "${@:1:4}")
-        case ${cols[0]} in
-            s | o) cols[1]="${cols[1]:1:${#cols[1]}-2}" ;;
-        esac
-        if [[ "$5" == "${cols[1]}" ]]; then
-            return 0
-        fi
-        sleep 1
-    done
-
-    echo !!!timeout!!!
-    return 1
-}
-
-# $1: service
-# $2: object
-# $3: interface
-# $4: member
-wait_object()
-{
-    while ! busctl get-property "$1" "$2" "$3" "$4" &>/dev/null; do
-        sleep 1
-    done
-}
-
-# $1: service
-# $2: object
-# $3: interface
-# $4: property
-# $5: expected property value
-# $6: method
-# $...: arguments
-invoke()
-{
-    set +x
-    wait_object "${@:1:4}"
-    busctl call "${@:1:3}" "${@:6}"
-    wait_prop_change "${@:1:5}"
-    set -x
-}
-
-# $1: service
-# $2: object
-# $3: interface
-# $4: member
-# $5: property spec
-# $6: property values
-set_prop()
-{
-    set +x
-    busctl set-property "$@"
-    wait_prop_change "${@:1:4}" "${@:6:1}"
-    set -x
-}
-
-# $1: service
-# $2: object
-# $3: interface
-# $4: member
-# $5: variable name
-get_prop()
-{
-    read -a l < <(busctl get-property "${@:1:4}")
-    eval $5=\"${l[1]}\"
-}
-
-cleanup()
-{
-    trap '' TERM
-    set +e
-    while (( 0 != ${#cleanup[@]} )); do
-        eval ${cleanup[${#cleanup[@]}-1]}
-        unset cleanup[${#cleanup[@]}-1]
-    done
-}
-
-cleanup_push()
-{
-    cleanup+=("$*")
-}
-
-nm_manage()
-{
-    set_prop org.freedesktop.NetworkManager \
-        /org/freedesktop/NetworkManager/Devices/"$nm_link_index" \
-        org.freedesktop.NetworkManager.Device \
-        Managed b true
-}
-
-link_unmanage()
-{
-    invoke org.freedesktop.miracle.wifi \
-        /org/freedesktop/miracle/wifi/link/$link_index \
-        org.freedesktop.miracle.wifi.Link \
-        Managed false \
-        Unmanage
-}
-
-link_stop_p2pscan()
-{
-    set_prop org.freedesktop.miracle.wifi \
-        /org/freedesktop/miracle/wifi/link/$link_index \
-        org.freedesktop.miracle.wifi.Link \
-        P2PScanning b false
-}
-
-peer_disconnect()
-{
-    invoke org.freedesktop.miracle.wifi \
-        /org/freedesktop/miracle/wifi/peer/$peer_id \
-        org.freedesktop.miracle.wifi.Peer \
-        Connected false \
-        Disconnect
-}
-
-sudo killall miracle-wifid &>/dev/null || true
-sudo killall miracle-wfwctl &>/dev/null || true
-
-trap cleanup EXIT
-trap 'exit 0' TERM
-trap '' CHLD
-
-set_prop org.freedesktop.NetworkManager \
-    /org/freedesktop/NetworkManager/Devices/"$nm_link_index" \
-    org.freedesktop.NetworkManager.Device \
-    Managed b false
-cleanup_push nm_manage
-invoke org.freedesktop.miracle.wifi \
-    /org/freedesktop/miracle/wifi/link/$link_index \
-    org.freedesktop.miracle.wifi.Link \
-    Managed true \
-    Manage
-cleanup_push link_unmanage
-set_prop org.freedesktop.miracle.wifi \
-    /org/freedesktop/miracle/wifi/link/$link_index \
-    org.freedesktop.miracle.wifi.Link \
-    WfdSubelements s "$wfd_subelems"
-# this one is tricky, we wait for wpa_supplicant fully started then start 
-# P2P scaning, or "Invalid argument" will return
-sleep 0.5
-echo wait for peer...
-set_prop org.freedesktop.miracle.wifi \
-    /org/freedesktop/miracle/wifi/link/$link_index \
-    org.freedesktop.miracle.wifi.Link \
-    P2PScanning b true
-cleanup_push link_stop_p2pscan
-echo connect to peer...
-invoke org.freedesktop.miracle.wifi \
-    /org/freedesktop/miracle/wifi/peer/$peer_id \
-    org.freedesktop.miracle.wifi.Peer \
-    Connected true \
-    Connect ss auto ''
-cleanup_push peer_disconnect
-get_prop org.freedesktop.miracle.wifi \
-    /org/freedesktop/miracle/wifi/peer/$peer_id \
-    org.freedesktop.miracle.wifi.Peer \
-    Interface p2p_iface
-sudo tcpdump -i $p2p_iface -w miraclecast.pcap -T rtp &
-cleanup_push "kill $!"
-
-while [[ -z "$nocheck" ]] && ! killall -0 miracle-wfdctl &>/dev/null; do
-    echo please run miracle-wfdctl manually
-    sleep 3
-done
-echo starting WFD session...
-invoke org.freedesktop.miracle.wfd \
-    /org/freedesktop/miracle/wfd/sink/$peer_id \
-    org.freedesktop.miracle.wfd.Sink \
-    Peer /org/freedesktop/miracle/wifi/peer/$peer_id \
-    StartSession ssuuuus \
-        "$XAUTHORITY" \
-        'x://:0.0' \
-        0 \
-        0 \
-        1920 \
-        1080 \
-        'alsa_output.pci-0000_00_1b.0.analog-stereo.monitor'
-
-wait