diff --git a/home.admin/00parallelChainsMenu.sh b/home.admin/00parallelChainsMenu.sh
index 97b345a8e..ea6e04275 100644
--- a/home.admin/00parallelChainsMenu.sh
+++ b/home.admin/00parallelChainsMenu.sh
@@ -8,8 +8,8 @@ source /home/admin/raspiblitz.info
 if ! grep -Eq "^testnet=" /mnt/hdd/raspiblitz.conf; then
   echo "testnet=off" >> /mnt/hdd/raspiblitz.conf
 fi
-if ! grep -Eq "^LNdefault=" /mnt/hdd/raspiblitz.conf; then
-  echo "LNdefault=lnd" >> /mnt/hdd/raspiblitz.conf
+if ! grep -Eq "^lightning=" /mnt/hdd/raspiblitz.conf; then
+  echo "lightning=lnd" >> /mnt/hdd/raspiblitz.conf
 fi
 source /mnt/hdd/raspiblitz.conf
 
@@ -25,12 +25,12 @@ else
 fi
 
 # LNTYPE is lnd | cln
-if [ $# -gt 1 ]&&[ $2 != $LNdefault ];then
+if [ $# -gt 1 ]&&[ $2 != $lightning ];then
   nonDefaultLNtype=1
   LNTYPE=$2
 else
   nonDefaultLNtype=0
-  LNTYPE=$LNdefault
+  LNTYPE=$lightning
 fi
 
 # get the local network IP to be displayed on the LCD
@@ -163,8 +163,8 @@ case $CHOICE in
     ;;
   SWITCHLN)
     # setting value in raspi blitz config
-    sudo sed -i "s/^LNdefault=.*/LNdefault=$LNTYPE/g" /mnt/hdd/raspiblitz.conf
-    echo "# OK - Set LNdefault=$LNTYPE in /mnt/hdd/raspiblitz.conf"
+    sudo sed -i "s/^lightning=.*/lightning=$LNTYPE/g" /mnt/hdd/raspiblitz.conf
+    echo "# OK - Set lightning=$LNTYPE in /mnt/hdd/raspiblitz.conf"
     echo
     echo "Press ENTER to return to main menu."
     ;;
diff --git a/home.admin/99clnMenu.sh b/home.admin/99clnMenu.sh
index b347552cc..92d01ca50 100644
--- a/home.admin/99clnMenu.sh
+++ b/home.admin/99clnMenu.sh
@@ -34,7 +34,7 @@ if [ ${#openChannels} -gt 0 ] && [ ${openChannels} -gt 0 ]; then
   OPTIONS+=(CLOSEALL "Close all open Channels on $CHAIN")
 fi
 
-if [ ${#LNdefault} -gt 0 ]&&[ $LNdefault = lnd ];then
+if [ ${#lightning} -gt 0 ]&&[ $lightning = lnd ];then
   OPTIONS+=(SWITCHLN  "Use C-lightning as default")
 fi  
 
@@ -104,8 +104,8 @@ case $CHOICE in
       clear 
       echo
       # setting value in raspi blitz config
-      sudo sed -i "s/^LNdefault=.*/LNdefault=cln/g" /mnt/hdd/raspiblitz.conf
-      echo "# OK - LNdefault=cln is set in /mnt/hdd/raspiblitz.conf"
+      sudo sed -i "s/^lightning=.*/lightning=cln/g" /mnt/hdd/raspiblitz.conf
+      echo "# OK - lightning=cln is set in /mnt/hdd/raspiblitz.conf"
       echo
       echo "Press ENTER to return to main menu."
       read key
diff --git a/home.admin/99lndMenu.sh b/home.admin/99lndMenu.sh
index e202a434b..07550de02 100644
--- a/home.admin/99lndMenu.sh
+++ b/home.admin/99lndMenu.sh
@@ -38,7 +38,7 @@ if [ ${#openChannels} -gt 0 ] && [ ${openChannels} -gt 0 ]; then
 fi
 
 OPTIONS+=(CASHOUT "Withdraw all funds from LND on $CHAIN")
-if [ ${#LNdefault} -gt 0 ]&&[ $LNdefault = cln ];then
+if [ ${#lightning} -gt 0 ]&&[ $lightning = cln ];then
   OPTIONS+=(SWITCHLN  "Use LND as default")
 fi  
 
@@ -132,8 +132,8 @@ case $CHOICE in
       clear 
       echo
       # setting value in raspi blitz config
-      sudo sed -i "s/^LNdefault=.*/LNdefault=lnd/g" /mnt/hdd/raspiblitz.conf
-      echo "# OK - LNdefault=lnd is set in /mnt/hdd/raspiblitz.conf"
+      sudo sed -i "s/^lightning=.*/lightning=lnd/g" /mnt/hdd/raspiblitz.conf
+      echo "# OK - lightning=lnd is set in /mnt/hdd/raspiblitz.conf"
       echo
       echo "Press ENTER to return to main menu."
       read key
diff --git a/home.admin/config.scripts/cln-plugin.spark.sh b/home.admin/config.scripts/cln-plugin.spark.sh
new file mode 100644
index 000000000..5c0c26ec6
--- /dev/null
+++ b/home.admin/config.scripts/cln-plugin.spark.sh
@@ -0,0 +1,203 @@
+#!/bin/bash
+
+#https://github.com/shesek/spark-wallet/releases
+sparkVERSION="v0.3.0rc"
+
+# command info
+if [ $# -lt 2 ] || [ "$1" = "-h" ] || [ "$1" = "-help" ];then
+  echo
+  echo "Install, remove, connect or get info about the Spark Wallet plugin for C-lightning"
+  echo "version: $SPARKVERSION"
+  echo "Usage:"
+  echo "cln-plugin.spark-wallet.sh [on|off|menu|connect] [testnet|mainnet|signet]"
+  echo
+  exit 1
+fi
+
+# source <(/home/admin/config.scripts/network.aliases.sh getvars cln <mainnet|testnet|signet>)
+source <(/home/admin/config.scripts/network.aliases.sh getvars cln $2)
+
+# show info menu
+if [ "$1" = "menu" ]; then
+
+  # get network info
+  localip=$(ip addr | grep 'state UP' -A2 | grep -E -v 'docker0|veth' | grep 'eth0\|wlan0\|enp0' | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
+  toraddress=$(sudo cat /mnt/hdd/tor/${netprefix}spark/hostname)
+  toraddresstext="Hidden Service address for the Tor Browser (QRcode on LCD):\n$toraddress"
+  if [ ${#toraddress} -eq 0 ];then
+    toraddresstext="Activate Tor to access the web interface from outside of the local network."
+  else
+    /home/admin/config.scripts/blitz.display.sh qr "${toraddress}"
+  fi
+  fingerprint=$(openssl x509 -in /home/bitcoin/.lightning/spark-tls/cert.pem -fingerprint -noout | cut -d"=" -f2)
+
+  whiptail --title "\
+spark - $CHAIN" --msgbox "Open in your local web browser:
+https://${localip}:${portprefix}9000\n
+username: blitz
+password: 'your Password B'\n
+Accept the self-signed SSL certificate with the fingerprint:
+${fingerprint}\n
+${toraddresstext}
+" 17 67
+  
+  /home/admin/config.scripts/blitz.display.sh hide
+
+  echo "# please wait ..."
+  exit 0
+fi
+
+# add default value to raspi config if needed
+configEntry="${netprefix}spark"
+configEntryExists=$(sudo cat /mnt/hdd/raspiblitz.conf | grep -c "${configEntry}")
+if [ "${configEntryExists}" == "0" ]; then
+  echo "# adding default config entry for '${configEntry}'"
+  sudo /bin/sh -c "echo '${configEntry}=off' >> /mnt/hdd/raspiblitz.conf"
+else
+  echo "# default config entry for '${configEntry}' exists"
+fi
+
+if [ $1 = connect ];then
+  localip=$(ip addr | grep 'state UP' -A2 | grep -E -v 'docker0|veth' | grep 'eth0\|wlan0\|enp0' | tail -n1 | awk '{print $2}' | cut -f1 -d'/')
+  toraddress=$(sudo cat /mnt/hdd/tor/${netprefix}spark/hostname)
+  accesskey=$(sudo cat ${CLNCONF} | grep "^spark-keys=" | cut -d= -f2 | cut -d';' -f1) 
+  url="https://${localip}:${portprefix}9000/"
+  string="${url}?access-key=${accesskey}"
+
+  /home/admin/config.scripts/blitz.display.sh qr "$string"
+  clear
+  echo "connection string (shown as a QRcode on the top and on the LCD):"
+  echo "$string"
+  qrencode -t ANSIUTF8 "${string}"
+  echo
+  echo "Tor address (shown as a QRcode below):"
+  echo "${toraddress}"
+  qrencode -t ANSIUTF8 "${toraddress}"
+  echo
+  echo "# Press enter to hide the QRcode from the LCD"
+  read key
+  /home/admin/config.scripts/blitz.display.sh hide
+fi
+
+if [ $1 = on ];then
+
+  # check and install NodeJS
+  /home/admin/config.scripts/bonus.nodejs.sh on
+  
+  # create spark user
+  sudo adduser --disabled-password --gecos "" spark
+  
+  # set up npm-global
+  sudo -u spark mkdir /home/spark/.npm-global
+  sudo -u spark npm config set prefix '/home/spark/.npm-global'
+  sudo bash -c "echo 'PATH=$PATH:/home/spark/.npm-global/bin' >> /home/spark/.bashrc"
+  
+ echo "# Create data folder on the disk"
+  # move old data if present
+  sudo mv /home/spark/.spark /mnt/hdd/app-data/ 2>/dev/null
+  echo "# make sure the data directory exists"
+  sudo mkdir -p /mnt/hdd/app-data/.spark
+  echo "# symlink"
+  sudo rm -rf /home/spark/.spark # not a symlink.. delete it silently
+  sudo ln -s /mnt/hdd/app-data/.spark/ /home/spark/.spark
+  sudo chown spark:spark -R /mnt/hdd/app-data/.spark
+
+
+
+  npm install -g spark-wallet
+  
+  if [ ! -f /home/bitcoin/cln-plugins-available/spark ];then
+    sudo -u bitcoin mkdir /home/bitcoin/cln-plugins-available
+    # download binary
+    sudo -u bitcoin wget https://github.com/fiatjaf/spark/releases/download/${sparkVERSION}/spark_${DISTRO}\
+    -O /home/bitcoin/cln-plugins-available/spark || exit 1
+    # make executable
+    sudo chmod +x /home/bitcoin/cln-plugins-available/spark
+  fi
+
+  if [ ! -L /home/bitcoin/${netprefix}cln-plugins-enabled/spark ];then
+    sudo ln -s /home/bitcoin/cln-plugins-available/spark \
+               /home/bitcoin/${netprefix}cln-plugins-enabled
+  fi
+
+  if [ ! -f /home/bitcoin/.lightning/spark-tls/key.pem ];then
+    # create a self signed cert https://github.com/fiatjaf/spark#how-to-use
+    /home/admin/config.scripts/internet.selfsignedcert.sh   
+    # spark looks for specific filenames
+    sudo -u bitcoin mkdir /home/bitcoin/.lightning/spark-tls
+    sudo ln -sf /mnt/hdd/app-data/selfsignedcert/selfsigned.key \
+        /home/bitcoin/.lightning/spark-tls/key.pem
+    sudo ln -sf /mnt/hdd/app-data/selfsignedcert/selfsigned.cert \
+        /home/bitcoin/.lightning/spark-tls/cert.pem
+  fi
+
+  ##########
+  # Config #
+  ##########
+  if ! grep -Eq "^spark" ${CLNCONF};then
+    echo "# Editing ${CLNCONF}"
+    echo "# See: https://github.com/fiatjaf/spark#how-to-use"
+    PASSWORD_B=$(sudo cat /mnt/hdd/bitcoin/bitcoin.conf | grep rpcpassword | cut -c 13-)
+    # Spark wallet only allows alphanumeric characters
+    masterkeythatcandoeverything=$(< /dev/urandom tr -dc a-zA-Z0-9 | head -c20)
+    secretaccesskeythatcanreadstuff=$(< /dev/urandom tr -dc a-zA-Z0-9 | head -c20)
+    verysecretkeythatcanpayinvoices=$(< /dev/urandom tr -dc a-zA-Z0-9 | head -c20)
+    keythatcanlistentoallevents=$(< /dev/urandom tr -dc a-zA-Z0-9 | head -c20)
+  echo "
+spark-host=0.0.0.0
+spark-port=${portprefix}9000
+spark-tls-path=/home/bitcoin/.lightning/spark-tls
+spark-login=blitz:$PASSWORD_B
+spark-keys=${masterkeythatcandoeverything}; ${secretaccesskeythatcanreadstuff}: getinfo, listchannels, listnodes; ${verysecretkeythatcanpayinvoices}: pay; ${keythatcanlistentoallevents}: stream
+" | sudo tee -a ${CLNCONF}
+  else
+    echo "# spark is already configured in ${CLNCONF}"
+  fi
+
+  echo "# Allowing port ${portprefix}9000 through the firewall"
+  sudo ufw allow "${portprefix}9000" comment "${netprefix}spark"
+
+  # hidden service to https://xx.onion
+  /home/admin/config.scripts/internet.hiddenservice.sh ${netprefix}spark 443 ${portprefix}9000
+
+  # setting value in raspi blitz config
+  sudo sed -i "s/^${netprefix}spark=.*/${netprefix}spark=on/g" /mnt/hdd/raspiblitz.conf
+
+  source /home/admin/raspiblitz.info
+  if [ "${state}" == "ready" ]; then
+    echo "# Restart the ${netprefix}lightningd.service to activate spark"
+    sudo systemctl restart ${netprefix}lightningd
+  fi
+
+  echo "# spark was installed"
+  echo "# Monitor with:"
+  echo "sudo journalctl | grep spark | tail -n5"
+  echo "sudo tail -n 100 -f /home/bitcoin/.lightning/${CLNETWORK}/cl.log | grep spark"
+  
+fi
+
+if [ $1 = off ];then
+  # delete symlink
+  sudo rm -rf /home/bitcoin/${netprefix}cln-plugins-enabled/spark
+  
+  echo "# Editing ${CLNCONF}"
+  sudo sed -i "/^spark/d" ${CLNCONF}
+
+  echo "# Restart the ${netprefix}lightningd.service to deactivate spark"
+  sudo systemctl restart ${netprefix}lightningd
+
+  echo "# Deny port ${portprefix}9000 through the firewall"
+  sudo ufw deny "${portprefix}9000"
+  
+  /home/admin/config.scripts/internet.hiddenservice.sh off ${netprefix}spark
+
+  # purge
+  if [ "$(echo "$@" | grep -c purge)" -gt 0 ];then
+    echo "# Delete plugin"
+    sudo rm -rf /home/bitcoin/cln-plugins-available/spark
+  fi
+  # setting value in raspi blitz config
+  sudo sed -i "s/^${netprefix}spark=.*/${netprefix}spark=off/g" /mnt/hdd/raspiblitz.conf
+  echo "# spark was uninstalled"
+
+fi
diff --git a/home.admin/config.scripts/network.aliases.sh b/home.admin/config.scripts/network.aliases.sh
index 21a970ed7..3f9cec1c9 100644
--- a/home.admin/config.scripts/network.aliases.sh
+++ b/home.admin/config.scripts/network.aliases.sh
@@ -27,8 +27,8 @@ if [ $1 = getvars ];then
   if [ $# -gt 1 ];then
     LNTYPE=$2
   else
-    if [ ${#LNdefault} -gt 0 ];then
-      LNTYPE=${LNdefault}
+    if [ ${#lightning} -gt 0 ];then
+      LNTYPE=${lightning}
     else
       LNTYPE=lnd
     fi