diff --git a/README.md b/README.md
index a1d7c5b..9262bfd 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,9 @@
 * [YunoHost website](https://yunohost.org)
 
 Changelog:
+* Update to FreshRSS 1.6.3
+* Complete package refactoring
+* Update to FreshRSS 1.6.2
 * Update to FreshRSS 1.5
 * Refactoring of yunohost scripts
 * Update to FreshRSS 1.4
diff --git a/check_process b/check_process
new file mode 100644
index 0000000..3c96044
--- /dev/null
+++ b/check_process
@@ -0,0 +1,34 @@
+;; Test complet
+    auto_remove=1
+    ; Manifest
+        domain="domain.tld"    (DOMAIN)
+        path="/path"    (PATH)
+        admin="homer"    (USER)
+    ; Checks
+        pkg_linter=1
+        setup_sub_dir=1
+        setup_root=1
+        setup_nourl=0
+        setup_private=0
+        setup_public=0
+        upgrade=1
+        backup_restore=1
+        multi_instance=1
+        wrong_user=1
+        wrong_path=1
+        incorrect_path=1
+        corrupt_source=0
+            fail_download_source=0
+        port_already_use=0
+            final_path_already_use=0
+;;; Levels
+    Level 1=auto
+    Level 2=auto
+    Level 3=auto
+    Level 4=1
+    Level 5=1
+    Level 6=auto
+    Level 7=auto
+    Level 8=0
+    Level 9=0
+    Level 10=0
diff --git a/conf/config.php b/conf/config.php
deleted file mode 100644
index 7f954de..0000000
--- a/conf/config.php
+++ /dev/null
@@ -1,23 +0,0 @@
-<?php
-
-return array (
-  'environment' => 'production',
-  'salt' => 'yunosalt',
-  'title' => 'FreshRSS',
-  'default_user' => 'yunoadminuser',
-  'auth_type' => 'http_auth',
-  'db' => 
-  array (
-    'type' => 'mysql',
-    'host' => 'localhost',
-    'user' => 'yunouser',
-    'password' => 'yunopass',
-    'base' => 'yunobase',
-    'prefix' => false,
-  ),
-  'allow_anonymous' => false,
-  'allow_anonymous_refresh' => false,
-  'unsafe_autologin_enabled' => false,
-  'api_enabled' => true,
-  'extensions_enabled' => array(),
-);
\ No newline at end of file
diff --git a/conf/freshrss-deps.control b/conf/freshrss-deps.control
new file mode 100644
index 0000000..fead3c8
--- /dev/null
+++ b/conf/freshrss-deps.control
@@ -0,0 +1,13 @@
+Section: misc
+Priority: optional
+Homepage: https://github.com/FreshRSS/FreshRSS
+Standards-Version: 3.9.2
+
+Package: freshrss-deps
+Version: 1.6.3
+Depends: php5-cli, php5-gmp
+Architecture: all
+Description: meta package for freshrss dependencies
+ FreshRSS is a self-hosted RSS feed aggregator such as Leed or Kriss Feed.
+ .
+ This meta-package is only responsible of installing its dependencies.
diff --git a/conf/freshrss.cron b/conf/freshrss.cron
new file mode 100644
index 0000000..683e7ac
--- /dev/null
+++ b/conf/freshrss.cron
@@ -0,0 +1 @@
+*/10 * * * * www-data /usr/bin/php #DESTDIR#/app/actualize_script.php >/tmp/FreshRSS.log 2>&1
diff --git a/hooks/post_app_addaccess b/hooks/post_app_addaccess
index 001259b..7d5d247 100755
--- a/hooks/post_app_addaccess
+++ b/hooks/post_app_addaccess
@@ -1,51 +1,19 @@
 #!/bin/bash
 
-app=$1
+app=$YNH_APP_INSTANCE_NAME
 new_users=$2
-app_path=/var/www/freshrss
+app_path=/var/www/$app
+
+# Source app helpers
+. /usr/share/yunohost/helpers
 
 
 if [[ "freshrss" = "$app" ]];
 then
-    db_user=freshrss
-    db_name=freshrss
-    db_pwd=$(sudo yunohost app setting freshrss mysqlpwd)
-
-    #check wallabag
-    if [[ $(sudo yunohost app list --installed -f wallabag2) -eq 0 ]]; then
-        echo "Detected wallabag V2"
-        wallabagPath=$(sudo yunohost app setting wallabag2 path)
-        wallabagUrl=$domain$wallabagPath
-        sharingWallabag="'sharing' => \n\tarray( \n\t\t0 => \n\t\tarray(\n\t\t\t'type' => 'wallabag',\n\t\t\t'name' => 'Wallabag',\n\t\t\t'url' => 'https://$wallabagUrl',\n\t\t),"
-        sharingEnable=1
-    elif [[ $(sudo yunohost app list --installed -f wallabag) -eq 0 ]]; then
-        echo "Detected wallabag"
-        wallabagPath=$(sudo yunohost app setting wallabag path)
-        wallabagUrl=$domain$wallabagPath
-        sharingWallabag="'sharing' => \n\tarray( \n\t\t0 => \n\t\tarray(\n\t\t\t'type' => 'wallabag',\n\t\t\t'name' => 'Wallabag',\n\t\t\t'url' => 'https://$wallabagUrl',\n\t\t),"
-        sharingEnable=1
-    fi
-
     for myuser in $(echo "$new_users" | sed "s/,/ /g")
     do
-        #copy sql
-        sudo cp $app_path/app/SQL/install_ynh.sql /tmp/$myuser-install.sql
-
-        #change username in sql
-        sudo sed -i "s/YnoUser/$myuser/g" /tmp/$myuser-install.sql
-        #create tables
-        ynh_mysql_connect_as "$db_user" "$db_pwd" "$db_name" \
-        < "/tmp/$myuser-install.sql"
-        #remove temp sql
-        sudo rm /tmp/$myuser-install.sql
-
-        #copy default conf
-        sudo cp -r $app_path/data/users/_ $app_path/data/users/$myuser/
-        sudo mv $app_path/data/users/$myuser/config.default.php $app_path/data/users/$myuser/config.php
-        #add wallabag sharing
-        if [[ $sharingEnable -eq 1 ]]; then
-            sudo sed -i "s@'sharing'\ =>\ array\ (@$sharingWallabag@g" $app_path/data/users/$myuser/config.php
-        fi
+        user_token=$(ynh_string_random)
+        $app_path/cli/create-user.php --user $myuser --language en --token $user_token --no-default-feeds
         sudo chown -R www-data: $app_path/data/users/$myuser/
     done
 fi
diff --git a/hooks/post_user_create b/hooks/post_user_create
index b2523f3..bc39483 100755
--- a/hooks/post_user_create
+++ b/hooks/post_user_create
@@ -1,21 +1,12 @@
 #!/bin/bash
-
-db_user=freshrss
-db_name=freshrss
-db_pwd=$(sudo yunohost app setting freshrss mysqlpwd)
-app_path=/var/www/freshrss
+app=$YNH_APP_INSTANCE_NAME
+app_path=/var/www/$app
 
 myuser=$1
 
-#copy sql
-sudo cp $app_path/app/SQL/install_ynh.sql /tmp/$myuser-install.sql
-#change username in sql
-sudo sed -i "s/YnoUser/$myuser/g" /tmp/$myuser-install.sql
-#create tables
-mysql -u $db_user -p$db_pwd $db_user < /tmp/$myuser-install.sql
-#remove temp sql
-sudo rm /tmp/$myuser-install.sql
-#copy default conf
-sudo cp -r $app_path/data/users/_ $app_path/data/users/$myuser/
-sudo mv $app_path/data/users/$myuser/config.default.php $app_path/data/users/$myuser/config.php
+# Source app helpers
+. /usr/share/yunohost/helpers
+
+user_token=$(ynh_string_random)
+sudo $app_path/cli/create-user.php --user $myuser --language en --token $user_token --no-default-feeds
 sudo chown -R www-data: $app_path/data/users/$myuser/
diff --git a/hooks/post_user_delete b/hooks/post_user_delete
new file mode 100755
index 0000000..bcccdf0
--- /dev/null
+++ b/hooks/post_user_delete
@@ -0,0 +1,6 @@
+#!/bin/bash
+app=$YNH_APP_INSTANCE_NAME
+app_path=/var/www/$app
+
+myuser=$1
+$app_path/cli/delete-user.php --user $myuser
diff --git a/manifest.json b/manifest.json
index bcf9278..77c10e6 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,7 @@
 {
     "name": "FreshRSS",
     "id": "freshrss",
+    "packaging_format": 1,
     "description": {
         "en": "FreshRSS is a selfhostable RSS reader",
         "fr": "FreshRSS est un agrégateur de flux RSS à auto-héberger"
@@ -11,7 +12,10 @@
         "name": "plopoyop",
         "email": "plopoyop@gmail.com"
     },
-    "multi_instance": "false",
+    "requirements": {
+        "yunohost": ">= 2.4.0"
+    },
+    "multi_instance": true,
     "services": [
         "nginx",
         "php5-fpm",
@@ -41,9 +45,10 @@
             {
                 "name": "admin",
                 "type": "user",
+                "optional": false,
                 "ask": {
-                    "en": "Choose the default user (leave empty if none)",
-                    "fr": "Choisissez l'utilisateur par defaut (laissez vide si aucun)"
+                    "en": "Choose the default user",
+                    "fr": "Choisissez l'utilisateur par defaut"
                 },
                 "example": "homer"
             }
diff --git a/scripts/_common.sh b/scripts/_common.sh
index f935adc..c84e56a 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -1,34 +1,41 @@
 #
 # Common variables
 #
+APPNAME="freshrss"
+# FreshRSS version
+VERSION="1.6.3"
 
-# FreshRss version
-VERSION="1.5.0"
+# FreshRSS complete tarball checksum
+FRESHRSS_SOURCE_SHA256="06bcdfbde53bd8f01b8376ee28a4f1f9630c3409d5dc12f02f74f2f7aff4a6f9"
 
-# Roundcube complete tarball checksum
-FRESHRSS_SOURCE_SHA256="72c3dcb3e58f4cf7d7e6a06ffec0cad8540ee5aeee9024e785b56e8d55656746"
-
-# Remote URL to fetch Roundcube source tarball
-FRESHRSS_SOURCE_URL="https://github.com/FreshRSS/FreshRSS/archive/1.5.0.tar.gz"
+# Remote URL to fetch FreshRSS source tarball
+FRESHRSS_SOURCE_URL="https://github.com/FreshRSS/FreshRSS/archive/1.6.3.tar.gz"
 
 PKGDIR=$(cd ../; pwd)
 
-FINAL_PATH="/var/www/freshrss"
+#apt dependencies
+DEPS_PKG_NAME="freshrss-deps"
+
 #
 # Common helpers
 #
-# Download and extract FreshRss sources to the given directory
+# Download and extract FreshRSS sources to the given directory
 # usage: extract_freshrss DESTDIR
 extract_freshrss() {
   local DESTDIR=$1
 
-  # retrieve and extract FreshRss tarball
+  # retrieve and extract FreshRSS tarball
   rc_tarball="${DESTDIR}/freshrss.tar.gz"
   wget -q -O "$rc_tarball" "$FRESHRSS_SOURCE_URL" \
-    || ynh_die "Unable to download FreshRss tarball"
+    || ynh_die "Unable to download FreshRSS tarball"
   echo "$FRESHRSS_SOURCE_SHA256 $rc_tarball" | sha256sum -c >/dev/null \
     || ynh_die "Invalid checksum of downloaded tarball"
   tar xf "$rc_tarball" -C "$DESTDIR" --strip-components 1 \
     || ynh_die "Unable to extract FreshRss tarball"
-  rm "$rc_tarball"
+  sudo rm "$rc_tarball"
+}
+
+install_freshrss_dependencies() {
+    ynh_package_install_from_equivs ../conf/${DEPS_PKG_NAME}.control \
+      || ynh_die "Unable to install dependencies"
 }
diff --git a/scripts/backup b/scripts/backup
index 64f7ac8..963bafc 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -1,25 +1,21 @@
 #!/bin/bash
 
-set -e
+set -eu
 
-# The parameter $1 is the backup directory location dedicated to the app
-BACKUP_DIR=$1
-
-# The parameter $2 is the id of the app instance ex: strut__2
-APP=$2
+# Source app helpers
+. /usr/share/yunohost/helpers
 
 # retrieve useful param
-domain=$(sudo yunohost app setting ${APP} domain)
-db_pwd=$(sudo yunohost app setting ${APP} mysqlpwd)
+app=$YNH_APP_INSTANCE_NAME
+path=/var/www/$app
+dbpass=$(ynh_app_setting_get "$app" mysqlpwd)
+domain=$(ynh_app_setting_get "$app" domain)
 
 # Backup app files
-sudo mkdir -p "${BACKUP_DIR}/www"
-sudo cp -a /var/www/${APP}/. "${BACKUP_DIR}/www"
-
+ynh_backup "$path" "www"
 # Backup conf files
-sudo mkdir -p "${BACKUP_DIR}/conf"
-sudo cp -a /etc/nginx/conf.d/$domain.d/${APP}.conf "${BACKUP_DIR}/conf/${APP}.conf"
-sudo cp -a /etc/cron.d/${APP} "${BACKUP_DIR}/conf/${APP}"
+ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf" "nginx.conf"
+ynh_backup "/etc/cron.d/$app" "$app.cron"
 
 # Backup mysql
-mysqldump -u ${APP} -p$db_pwd ${APP} | sudo dd of=${BACKUP_DIR}/${APP}.dmp
+ynh_mysql_dump_db $app > $app.dmp
diff --git a/scripts/install b/scripts/install
index a6832b2..c7dfc19 100755
--- a/scripts/install
+++ b/scripts/install
@@ -3,125 +3,89 @@
 # Exit on command errors and treat unset variables as an error
 set -eu
 
-# Retrieve arguments
-domain=$1
-path=$2
-admin_user=$3
-
 # Load common variables and helpers
 . ./_common.sh
 
+# Retrieve arguments
+domain=$YNH_APP_ARG_DOMAIN
+path=${YNH_APP_ARG_PATH%/}
+admin_user=$YNH_APP_ARG_ADMIN
+# Setup variables
+app=$YNH_APP_INSTANCE_NAME
+db_user=$app
+db_name=$app
+
+FINAL_PATH="/var/www/$app"
+
 # Source app helpers
 . /usr/share/yunohost/helpers
 
+# if path do not begin with / add a / at the begining
+if [ "${path:0:1}" != "/" ]; then
+       path="/$path"
+fi
+# if path do not end with / add a / at the end
+if [ "${path:${#path}-1}" == "/" ] && [ ${#path} -gt 1 ]; then
+       path="${path:0:${#path}-1}"
+fi
+
 
 # Check user parameter if not empty
 if [[ $admin_user != '' ]]; then
-    sudo yunohost user list --json | grep -qi "\"username\": \"$admin_user\""
-    if [[ ! $? -eq 0 ]]; then
-        echo "Wrong user"
-        exit 1
-    fi
-    sudo yunohost app setting freshrss admin_user -v $admin_user
+    ynh_user_exists $admin_user || ynh_die "Wrong user"
+    ynh_app_setting_set $app admin_user $admin_user
 fi
 
 # Check domain/path availability
-sudo yunohost app checkurl $domain$path -a freshrss
-if [[ ! $? -eq 0 ]]; then
-    exit 1
-fi
+sudo yunohost app checkurl $domain$path -a $app || ynh_die "The path ${domain}${path} is not available for app installation."
+
+#install php5-cli
+ynh_package_install_from_equivs ../conf/${DEPS_PKG_NAME}.control \
+  || ynh_die "Unable to install dependencies"
 
 # Generate random DES key & password
-deskey=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d 'A-Za-z0-9' | sed -n 's/\(.\{24\}\).*/\1/p')
-db_pwd=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d 'A-Za-z0-9' | sed -n 's/\(.\{24\}\).*/\1/p')
-app_salt=$(dd if=/dev/urandom bs=1 count=200 2> /dev/null | tr -c -d 'A-Za-z0-9' | sed -n 's/\(.\{40\}\).*/\1/p')
-# Use 'freshrss' as database name and user
-db_user=freshrss
-db_name=freshrss
+deskey=$(ynh_string_random)
+db_pwd=$(ynh_string_random)
+app_salt=$(ynh_string_random)
+
 # Initialize database and store mysql password for upgrade
 ynh_mysql_create_db "$db_name" "$db_user" "$db_pwd"
-sudo yunohost app setting freshrss mysqlpwd -v $db_pwd
+ynh_app_setting_set "$app" mysqlpwd "$db_pwd"
 
 # Copy files to the right place
-TMPDIR=$(ynh_mkdir_tmp)
+TMPDIR=$(mktemp -d)
+sudo chmod 755 "$TMPDIR"
 extract_freshrss "$TMPDIR"
-sudo cp -a ../conf/config.php $TMPDIR/data
-sudo cp ../sources/install_ynh.sql $TMPDIR/app/SQL/install_ynh.sql
 
-# Change variables in freshrss configuration
-sudo sed -i "s/yunouser/$db_user/g" $TMPDIR/data/config.php
-sudo sed -i "s/yunopass/$db_pwd/g" $TMPDIR/data/config.php
-sudo sed -i "s/yunobase/$db_user/g" $TMPDIR/data/config.php
-sudo sed -i "s/yunosalt/$app_salt/g" $TMPDIR/data/config.php
-sudo sed -i "s@yunopath@$path@g" $TMPDIR/data/config.php
-if [[ $admin_user != '' ]]; then
-    sudo sed -i "s/yunoadminuser/$admin_user/g" $TMPDIR/data/config.php
-else
-    sudo sed -i '/yunoadminuser/d' $TMPDIR/data/config.php
-fi
+$TMPDIR/cli/do-install.php --default_user $admin_user --auth_type http_auth --environment production --base_url $domain/$path --title FreshRSS --api_enabled --db-type mysql --db-host localhost --db-user $db_user --db-password $db_pwd --db-base $db_name
 
 # Add users
-
-#check wallabag
-sharingEnable=0
-if sudo yunohost app list --installed -f wallabag2 | grep -q id ; then
-    echo "Detected wallabag V2"
-    wallabagPath=$(sudo yunohost app setting wallabag2 path | sed 's#/*$##')
-    wallabagUrl=$domain$wallabagPath
-    sharingWallabag="'sharing' => \n\tarray( \n\t\t0 => \n\t\tarray(\n\t\t\t'type' => 'wallabagv2',\n\t\t\t'name' => 'Wallabag',\n\t\t\t'url' => 'https://$wallabagUrl',\n\t\t),"
-    sharingEnable=1
-elif sudo yunohost app list --installed -f wallabag | grep -q id ; then
-    echo "Detected wallabag"
-    wallabagPath=$(sudo yunohost app setting wallabag path)
-    wallabagUrl=$domain$wallabagPath
-    sharingWallabag="'sharing' => \n\tarray( \n\t\t0 => \n\t\tarray(\n\t\t\t'type' => 'wallabag',\n\t\t\t'name' => 'Wallabag',\n\t\t\t'url' => 'https://$wallabagUrl',\n\t\t),"
-    sharingEnable=1
-fi
-
-freshrss_users=$(ldapsearch -h localhost -b ou=users,dc=yunohost,dc=org -x objectClass=mailAccount uid | grep uid: | sed 's/uid: //' | xargs)
-for myuser in $freshrss_users
+for myuser in $(ynh_user_list)
 do
-    #copy sql
-    sudo cp ../sources/install_ynh.sql /tmp/$myuser-install.sql
-    #change username in sql
-    sudo sed -i "s/YnoUser/$myuser/g" /tmp/$myuser-install.sql
-    #create tables
-    ynh_mysql_connect_as "$db_user" "$db_pwd" "$db_name" \
-    < "/tmp/$myuser-install.sql"
-
-    #remove temp sql
-    sudo rm /tmp/$myuser-install.sql
-    #copy default conf
-    sudo cp -r $TMPDIR/data/users/_/ $TMPDIR/data/users/$myuser
-    sudo mv $TMPDIR/data/users/$myuser/config.default.php $TMPDIR/data/users/$myuser/config.php
-
-    if [[ $sharingEnable -eq 1 ]]; then
-        sudo sed -i "s@'sharing'\ =>\ array\ (@$sharingWallabag@g" $TMPDIR/data/users/$myuser/config.php
-    fi
+    user_token=$(ynh_string_random)
+    $TMPDIR/cli/create-user.php --user $myuser --language en --token $user_token --no-default-feeds
 done
-# Delete install directive
-sudo rm $TMPDIR/data/do-install.txt
 # Move temp dir to final dir
 sudo mv $TMPDIR $FINAL_PATH
 # Modify Nginx configuration file and copy it to Nginx conf directory
 sed -i "s@PATHTOCHANGE@$path@g" ../conf/nginx.conf
 sed -i "s@ALIASTOCHANGE@$FINAL_PATH/@g" ../conf/nginx.conf
-sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/freshrss.conf
+sudo cp ../conf/nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
 
-#install php5-cli
-sudo apt-get update
-sudo apt-get install -y php5-cli php5-gmp
 #install update cron
-echo "*/10 * * * * www-data /usr/bin/php $FINAL_PATH/app/actualize_script.php >/tmp/FreshRSS.log 2>&1" > /tmp/cronfreshrss
-sudo mv /tmp/cronfreshrss /etc/cron.d/freshrss
-sudo chown root /etc/cron.d/freshrss
+# Add cron job
+cron_path="/etc/cron.d/$app"
+sed -i "s@#DESTDIR#@${FINAL_PATH}@g" ../conf/freshrss.cron
+sudo cp ../conf/freshrss.cron "$cron_path"
+sudo chmod 644 "$cron_path"
+
 
 # Set permissions to freshrss directory
+sudo chown -R root:root $FINAL_PATH
 sudo chown -R www-data: $FINAL_PATH/data/
 sudo chown -R www-data: $FINAL_PATH/extensions/
 #skip api directory
-sudo yunohost app setting freshrss skipped_uris -v /api/greader.php
-
+ynh_app_setting_set "$app" skipped_uris /api/greader.php
 # Reload Nginx and regenerate SSOwat conf
 sudo service nginx reload
 sudo yunohost app ssowatconf
diff --git a/scripts/remove b/scripts/remove
index e32e729..c46cbe5 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -1,13 +1,23 @@
 #!/bin/bash
 
-db_user=freshrss
-db_name=freshrss
-root_pwd=$(sudo cat /etc/yunohost/mysql)
-domain=$(sudo yunohost app setting freshrss domain)
+# Exit on command errors and treat unset variables as an error
+set -u
 
-mysql -u root -p$root_pwd -e "DROP DATABASE $db_name ; DROP USER $db_user@localhost ;"
-sudo rm -rf /var/www/freshrss
-sudo rm -rf /etc/cron.d/freshrss
-sudo rm -f /etc/nginx/conf.d/$domain.d/freshrss.conf
+# Source app helpers
+. /usr/share/yunohost/helpers
 
-sudo service nginx reload
\ No newline at end of file
+app=$YNH_APP_INSTANCE_NAME
+db_user=$app
+db_name=$app
+
+domain=$(ynh_app_setting_get $app domain)
+
+ynh_mysql_drop_db $db_name
+ynh_mysql_drop_user $db_user
+
+sudo rm -rf /var/www/$app
+sudo rm -rf /etc/cron.d/$app
+sudo rm -f /etc/nginx/conf.d/$domain.d/$app.conf
+
+sudo service nginx reload
+sudo yunohost app ssowatconf
diff --git a/scripts/restore b/scripts/restore
index 2f396f9..4e97e3b 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -1,26 +1,27 @@
 #!/bin/bash
 
-set -e
+set -eu
 
-# The parameter $1 is the backup directory location dedicated to the app
-BACKUP_DIR=$1
+app=$YNH_APP_INSTANCE_NAME
+db_user=$app
+db_name=$app
 
-# The parameter $2 is the id of the app instance ex: strut__2
-APP=$2
+
+# Source app helpers
+. /usr/share/yunohost/helpers
 
 # retrieve useful param
-domain=$(sudo yunohost app setting ${APP} domain)
-db_pwd=$(sudo yunohost app setting ${APP} mysqlpwd)
-path=$(sudo yunohost app setting ${APP} path)
+domain=$(ynh_app_setting_get $app domain)
+path=$(ynh_app_setting_get $app path)
 
 # Check domain/path availability
-sudo yunohost app checkurl $domain$path -a ${APP}  \
-    || (echo "Path not available: $domain$path" && exit 1)
+sudo yunohost app checkurl $domain$path -a $app || ynh_die "The path ${domain}${path} is not available for app installation."
+
+db_pass=$(ynh_app_setting_get $app mysqlpwd)
 
 # Restore sources & data
-final_path=/var/www/${APP}
-sudo mkdir $final_path
-sudo cp -a ${BACKUP_DIR}/www/. $final_path
+final_path=/var/www/$app
+ynh_backup "www" "$final_path"
 
 # Restore permissions
 sudo chown -R root:root $final_path
@@ -28,11 +29,12 @@ sudo chown -R www-data: $final_path/data/
 sudo chown -R www-data: $final_path/extensions/
 
 # Restore conf files
-sudo cp -a "${BACKUP_DIR}/conf/${APP}.conf" /etc/nginx/conf.d/$domain.d/${APP}.conf
-sudo cp -a "${BACKUP_DIR}/conf/${APP}" /etc/cron.d/${APP}
+ynh_backup nginx.conf /etc/nginx/conf.d/$domain.d/$app.conf
+ynh_backup $app.cron /etc/cron.d/$app
 
 # Restore mysql dump
-sudo su -c "mysql -u ${APP} -p$db_pwd ${APP} < ${BACKUP_DIR}/${APP}.dmp"
+ynh_mysql_create_db "$db_name" "$db_user" "$db_pass"
+ynh_mysql_connect_as "$db_user" "$db_pass" "$db_name" < "$app.dmp"
 
 # Reload Nginx, and regenerate SSOwat conf
 sudo service nginx reload
diff --git a/scripts/upgrade b/scripts/upgrade
index 2e478f9..e66bd78 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -8,36 +8,39 @@ set -eu
 # Source app helpers
 . /usr/share/yunohost/helpers
 
-#old version cleanup
-if [ -f $FINAL_PATH/data/user.php.dist ]; then
-	sudo rm $FINAL_PATH/data/user.php.dist
-fi
+app=$YNH_APP_INSTANCE_NAME
+FINAL_PATH="/var/www/$app"
+
+#install extention for api if necessary
+ynh_package_install_from_equivs ../conf/${DEPS_PKG_NAME}.control \
+  || ynh_die "Unable to install dependencies"
 
 # Check destination directory
 [[ ! -d $FINAL_PATH ]] && ynh_die \
 "The destination directory '$FINAL_PATH' does not exist.\
 The app is not correctly installed, you should remove it first."
 
+#old version cleanup
+if [ -f $FINAL_PATH/data/user.php.dist ]; then
+    sudo rm $FINAL_PATH/data/user.php.dist
+fi
+
 # Create tmp directory and install app inside
-TMPDIR=$(ynh_mkdir_tmp)
+TMPDIR=$(mktemp -d)
+sudo chmod 755 "$TMPDIR"
 extract_freshrss "$TMPDIR"
 
 # Restore config
 sudo rm $TMPDIR/data/do-install.txt
 sudo cp $FINAL_PATH/data/config.php $TMPDIR/data/config.php
 sudo cp -r $FINAL_PATH/data/users/. $TMPDIR/data/users/
+sudo cp -r $FINAL_PATH/extensions/. $TMPDIR/extensions/
 
 # Set permissions to freshrss directory
+sudo chown -R root:root $TMPDIR
 sudo chown -R www-data: $TMPDIR/data/
 sudo chown -R www-data: $TMPDIR/extensions/
 
 # Clean up existing files and copy new files to the right place
 sudo rm -rf "$FINAL_PATH"
 sudo cp -rp "$TMPDIR" "$FINAL_PATH"
-
-
-#install extention for api if necessary
-if ! dpkg -s php5-gmp | grep "installed" > /dev/null 2>&1; then
-    sudo apt-get update
-    sudo apt-get install -y php5-gmp
-fi
diff --git a/sources/install_ynh.sql b/sources/install_ynh.sql
deleted file mode 100644
index 5945707..0000000
--- a/sources/install_ynh.sql
+++ /dev/null
@@ -1,57 +0,0 @@
-CREATE TABLE IF NOT EXISTS `YnoUser_category` (
-	`id` SMALLINT NOT NULL AUTO_INCREMENT,    -- v0.7
-	`name` varchar(255) NOT NULL,
-	PRIMARY KEY (`id`),
-	UNIQUE KEY (`name`)    -- v0.7
-) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci
-ENGINE = INNODB;
-
-CREATE TABLE IF NOT EXISTS `YnoUser_feed` (
-	`id` SMALLINT NOT NULL AUTO_INCREMENT,	-- v0.7
-	`url` varchar(511) CHARACTER SET latin1 NOT NULL,
-	`category` SMALLINT DEFAULT 0,	-- v0.7
-	`name` varchar(255) NOT NULL,
-	`website` varchar(255) CHARACTER SET latin1,
-	`description` text,
-	`lastUpdate` int(11) DEFAULT 0,	-- Until year 2038
-	`priority` tinyint(2) NOT NULL DEFAULT 10,
-	`pathEntries` varchar(511) DEFAULT NULL,
-	`httpAuth` varchar(511) DEFAULT NULL,
-	`error` boolean DEFAULT 0,
-	`keep_history` MEDIUMINT NOT NULL DEFAULT -2,	-- v0.7
-	`ttl` INT NOT NULL DEFAULT -2,	-- v0.7.3
-	`cache_nbEntries` int DEFAULT 0,	-- v0.7
-	`cache_nbUnreads` int DEFAULT 0,	-- v0.7
-	PRIMARY KEY (`id`),
-	FOREIGN KEY (`category`) REFERENCES `YnoUser_category`(`id`) ON DELETE SET NULL ON UPDATE CASCADE,
-	UNIQUE KEY (`url`),	-- v0.7
-	INDEX (`name`),	-- v0.7
-	INDEX (`priority`),	-- v0.7
-	INDEX (`keep_history`)	-- v0.7
-) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci
-ENGINE = INNODB;
-
-CREATE TABLE IF NOT EXISTS `YnoUser_entry` (
-	`id` bigint NOT NULL,	-- v0.7
-	`guid` varchar(760) CHARACTER SET latin1 NOT NULL,	-- Maximum for UNIQUE is 767B
-	`title` varchar(255) NOT NULL,
-	`author` varchar(255),
-	`content_bin` blob,	-- v0.7
-	`link` varchar(1023) CHARACTER SET latin1 NOT NULL,
-	`date` int(11),	-- Until year 2038
-	`lastSeen` INT(11) DEFAULT 0,	-- v1.1.1, Until year 2038
-	`hash` BINARY(16),	-- v1.1.1
-	`is_read` boolean NOT NULL DEFAULT 0,
-	`is_favorite` boolean NOT NULL DEFAULT 0,
-	`id_feed` SMALLINT,	-- v0.7
-	`tags` varchar(1023),
-	PRIMARY KEY (`id`),
-	FOREIGN KEY (`id_feed`) REFERENCES `YnoUser_feed`(`id`) ON DELETE CASCADE ON UPDATE CASCADE,
-	UNIQUE KEY (`id_feed`,`guid`),	-- v0.7
-	INDEX (`is_favorite`),	-- v0.7
-	INDEX (`is_read`),	-- v0.7
-	INDEX `entry_lastSeen_index` (`lastSeen`)	-- v1.1.1
-) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci
-ENGINE = INNODB;
-
-INSERT IGNORE INTO `YnoUser_category` (id, name) VALUES(1, "Uncategorized");