diff --git a/README.md b/README.md
index 3bacd59..b4652b7 100644
--- a/README.md
+++ b/README.md
@@ -7,4 +7,4 @@ utilisé lors des Instalalis dispensées par Libre.re
 install one-liner
 -----------------
 
-`wget -q https://git.artcode.re/pvincent/debian-gnome/raw/branch/master/src/main -O /tmp/main && bash /tmp/main`
+`curl https://git.artcode.re/pvincent/debian-gnome/raw/branch/master/src/main | pkexec bash -s --`
\ No newline at end of file
diff --git a/src/main b/src/main
index 5eeadd9..d450f64 100755
--- a/src/main
+++ b/src/main
@@ -3,18 +3,17 @@
 ## FUNCTIONS
 ## ---------
 
-function trap_error {
-     error_code=$1
-     error_line=$2
- 
-     printf "\nEXIT #${error_code} due to error at line ${error_line} : \n-----------------------------------------\n"
-     sed "${error_line}q;d" $0
-     echo
-     exit $error_code
+function trap_error() {
+    error_code=$1
+    error_line=$2
+
+    printf "\nEXIT #${error_code} due to error at line ${error_line} : \n-----------------------------------------\n"
+    sed "${error_line}q;d" $0
+    echo
+    exit $error_code
 }
 
-
-function runVoid {
+function runVoid() {
     trap - ERR
     local COMMAND="$@"
     bash -c "${COMMAND}" >/dev/null 2>&1
@@ -22,24 +21,23 @@ function runVoid {
     trap 'trap_error $? $LINENO' ERR
 }
 
-
-function askConfirmation {
-  case "$1" in
-    y|Y|yes|YES ) 
-      QUESTION="(Y/n)?"
-      DEFAULT=0
-      ;;
-    * ) 
-      QUESTION="(y/N)?"
-      DEFAULT=1
-      ;;
-  esac
-  read -p "$QUESTION : " choice
-  case "$choice" in 
-    y|Y|yes|YES ) return 0;; #true
-    n|no|N|NO ) return 1;; #false
-    * ) return $DEFAULT;;
-  esac  
+function askConfirmation() {
+    case "$1" in
+    y | Y | yes | YES)
+        QUESTION="(Y/n)?"
+        DEFAULT=0
+        ;;
+    *)
+        QUESTION="(y/N)?"
+        DEFAULT=1
+        ;;
+    esac
+    read -p "$QUESTION : " choice
+    case "$choice" in
+    y | Y | yes | YES) return 0 ;; #true
+    n | no | N | NO) return 1 ;;   #false
+    *) return $DEFAULT ;;
+    esac
 }
 
 # Variables and constants
@@ -47,19 +45,18 @@ function askConfirmation {
 
 BASEDIR=/opt/debian-gnome
 ALLOWED_USERS=$(id -un) #CUSTOMIZE if needed!
-REQUIRED_PACKAGES=( \
-    vim git wget curl \
-    htop tilix jq unzip python3-pip gir1.2-gtop-2.0 \
-    tilix bash-completion \
-    nextcloud-desktop nautilus-nextcloud nautilus-share nautilus-image-converter \
-    cups hplip-data \
-    )
-
+REQUIRED_PACKAGES=(
+    vim git wget curl
+    htop tilix jq unzip python3-pip gir1.2-gtop-2.0
+    tilix bash-completion
+    nextcloud-desktop nautilus-nextcloud nautilus-share nautilus-image-converter
+    cups hplip-data
+)
 
 ## MAIN
 ## ---------
 
-[ `id -u` -eq 0 ] && echo 'normal user required' && exit -1
+[ $(id -u) -eq 0 ] && echo 'normal user required' && exit -1
 
 echo "# updating repositories"
 echo "==================="
@@ -72,10 +69,10 @@ fi
 
 echo "# required packages"
 echo "==================="
-for package in ${REQUIRED_PACKAGES[@]}; do 
+for package in ${REQUIRED_PACKAGES[@]}; do
     runVoid dpkg-query --status $package
-    if [ $runVoidError -ne 0 ] ; then    
-        echo -n "installing package <$package> ... " ;
+    if [ $runVoidError -ne 0 ]; then
+        echo -n "installing package <$package> ... "
         sudo DEBIAN_FRONTEND=noninteractive apt install -y $package
         echo "DONE"
     fi
@@ -101,7 +98,7 @@ echo "## openssh-server"
 echo "================="
 PGKNAME='openssh-server'
 runVoid dpkg-query --status $PGKNAME
-if [ $runVoidError -ne 0 ] ; then
+if [ $runVoidError -ne 0 ]; then
     set -e
     sudo apt install -y $PGKNAME
     sudo /opt/debian-bash/tools/append_or_replace "^#\?PermitRootLogin.*$" "PermitRootLogin no" /etc/ssh/sshd_config
@@ -115,19 +112,18 @@ fi
 
 echo "## allow hotplug eth0"
 echo "====================="
-if [[ $(grep 'auto eth0' /etc/network/interfaces.d/setup ) ]];then 
+if [[ $(grep 'auto eth0' /etc/network/interfaces.d/setup) ]]; then
     sudo /opt/debian-bash/tools/append_or_replace "^auto eth0.*$" "allow-hotplug eth0" /etc/network/interfaces.d/setup
 else
     echo "allow-hotplug already set up"
 fi
 
-
 echo "## firefox latest"
-echo "=================" 
-if [[ ! /usr/local/bin/firefox -ef /opt/firefox/firefox ]];then
+echo "================="
+if [[ ! /usr/local/bin/firefox -ef /opt/firefox/firefox ]]; then
     set -e
     cd /tmp
-    wget `curl 'https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64&lang=en-US' | cut -d '"' -f2` -O firefox-latest.tar.bz2
+    wget $(curl 'https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64&lang=en-US' | cut -d '"' -f2) -O firefox-latest.tar.bz2
     sudo mkdir /opt/firefox -p
     sudo chown $USER /opt/firefox
     tar -xjf firefox-latest.tar.bz2 -C /opt
@@ -145,7 +141,7 @@ StartupNotify=true
 StartupWMClass=Firefox
 EOF
     sudo ln -s /opt/firefox/firefox /usr/local/bin/firefox
-    sudo update-alternatives --install /usr/bin/x-www-browser x-www-browser /opt/firefox/firefox 200 && sudo update-alternatives --set x-www-browser /opt/firefox/firefox 
+    sudo update-alternatives --install /usr/bin/x-www-browser x-www-browser /opt/firefox/firefox 200 && sudo update-alternatives --set x-www-browser /opt/firefox/firefox
     sudo apt remove -y firefox-esr
     set +e
 else
@@ -167,7 +163,7 @@ fi
 
 echo "## gnome default settings"
 echo "============="
-gsettings set org.gnome.settings-daemon.peripherals.keyboard remember-numlock-state true
+#gsettings set org.gnome.settings-daemon.peripherals.keyboard remember-numlock-state true
 gsettings set org.gnome.desktop.interface clock-show-date true
 gsettings set org.gnome.nautilus.preferences click-policy 'single'
 gsettings set org.gnome.mutter dynamic-workspaces false
@@ -175,7 +171,6 @@ gsettings set org.gnome.desktop.wm.preferences num-workspaces 1
 gsettings set org.gnome.desktop.peripherals.touchpad tap-to-click true
 gsettings set org.gnome.desktop.peripherals.touchpad natural-scroll false
 
-
 echo "## favorite apps"
 echo "================"
 favorite_apps=$(gsettings get org.gnome.shell favorite-apps)
@@ -194,7 +189,7 @@ fi
 
 echo "## gnome-shell install several extensions"
 echo "========================================="
-EXTENSIONS=( 
+EXTENSIONS=(
     "appindicatorsupport@rgcjonas.gmail.com"
     "system-monitor@paradoxxx.zero.gmail.com"
     "dash-to-dock@micxgx.gmail.com"
@@ -203,7 +198,7 @@ EXTENSIONS=(
 
 NEED_GNOME_SHELL_RESTART=false
 for extension in "${EXTENSIONS[@]}"; do
-    if [[ ! -d $HOME/.local/share/gnome-shell/extensions/$extension ]];then
+    if [[ ! -d $HOME/.local/share/gnome-shell/extensions/$extension ]]; then
         NEED_GNOME_SHELL_RESTART=true
         gnome-extensions-cli --backend file install $extension
         if [[ -d $HOME/.local/share/gnome-shell/extensions/$extension/schemas ]]; then
@@ -215,7 +210,6 @@ for extension in "${EXTENSIONS[@]}"; do
     fi
 done
 
-
 echo "# gnome extra settings"
 echo "======================"
 gsettings set org.gnome.shell.extensions.system-monitor show-tooltip true