diff --git a/scripts/change_url b/scripts/change_url
index 93fd82a..7244972 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -43,14 +43,12 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 #=================================================
 
 change_domain=0
-if [ "$old_domain" != "$new_domain" ]
-then
+if [ "$old_domain" != "$new_domain" ]; then
   change_domain=1
 fi
 
 change_path=0
-if [ "$old_path" != "$new_path" ]
-then
+if [ "$old_path" != "$new_path" ]; then
   change_path=1
 fi
 
@@ -76,19 +74,16 @@ then
 fi
 
 # change the config.local.conf
-if [ $change_path -eq 1 ] && [ "$new_path" == "/" ]
-then
+if [ $change_path -eq 1 ] && [ "$new_path" == "/" ]; then
   ynh_replace_string --match_string="const WWW_URI = '$old_path/';" --replace_string="const WWW_URI = '$new_path';" --target_file="$final_path/config.local.php"
-elif [ $change_path -eq 1 ] && [ "$old_path" == "/" ]
-then
+elif [ $change_path -eq 1 ] && [ "$old_path" == "/" ]; then
   ynh_replace_string --match_string="const WWW_URI = '$old_path';" --replace_string="const WWW_URI = '$new_path/';" --target_file="$final_path/config.local.php"
 else [ $change_path -eq 1 ]
    ynh_replace_string --match_string="const WWW_URI = '$old_path/';" --replace_string="const WWW_URI = '$new_path/';" --target_file="$final_path/config.local.php"
 fi
 
 # Change the domain for nginx
-if [ $change_domain -eq 1 ]
-then
+if [ $change_domain -eq 1 ]; then
   # Delete file checksum for the old conf file location
   ynh_delete_file_checksum --file="$nginx_conf_path"
   mv $nginx_conf_path /etc/nginx/conf.d/$new_domain.d/$app.conf
diff --git a/scripts/install b/scripts/install
index 062eb91..744f84c 100644
--- a/scripts/install
+++ b/scripts/install
@@ -121,11 +121,13 @@ systemctl reload nginx
 #=================================================
 # MODIFY A CONFIG FILE
 #=================================================
-key=$(ynh_string_random --length=50)
+# copy config.dist.php creating config.local.php
 cp -a $final_path/config.dist.php $final_path/config.local.php
+# create a key for the secret key CSFR;
+key=$(ynh_string_random --length=50)
+# edit config.local.php
 ynh_replace_string --match_string="const SECRET_KEY = '3xUhIgGwuovRKOjVsVPQ5yUMfXUSIOX2GKzcebsz5OINrYC50r';" --replace_string="const SECRET_KEY = '$key';" --target_file="$final_path/config.local.php"
-if [ "$path_url" == "/" ]
-then
+if [ "$path_url" == "/" ]; then
   ynh_replace_string --match_string="//const WWW_URI = '/asso/';" --replace_string="const WWW_URI = '$path_url';" --target_file="$final_path/config.local.php"
 else
   ynh_replace_string --match_string="//const WWW_URI = '/asso/';" --replace_string="const WWW_URI = '$path_url/';" --target_file="$final_path/config.local.php"
diff --git a/scripts/restore b/scripts/restore
index 75164ec..53d9726 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -83,8 +83,7 @@ ynh_restore_file --origin_path="/etc/php/7.0/fpm/pool.d/$app.conf"
 ynh_script_progression --message="Reinstalling dependencies..." --time --weight=1
 
 # Define and install dependencies
-ynh_install_app_dependencies php7.0-sqlite3
-
+ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 1f53880..eaeffbf 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -53,20 +53,18 @@ if [ -z "$final_path" ]; then
 fi
 
 #=================================================
-# Backup squlite, config.local.php and squelettes directory
+# Backup Data
 #=================================================
 ynh_script_progression --message="Backing up the data before upgrading (may take a while)..." --time --weight=1
 
 bdd=$final_path/association.sqlite
 squelettes=$final_path/www/squelettes
 
-if  [ -d "$squelettes" ]
-then
+if  [ -d "$squelettes" ]; then
   cp -ar $squelettes /tmp/squelettes
 fi
 
-if [ -e "$bdd" ]
-then
+if [ -e "$bdd" ]; then
   cp -a $bdd /tmp/association.sqlite
 fi