diff --git a/check_process b/check_process
index 7c0bf58..0bd8ae7 100644
--- a/check_process
+++ b/check_process
@@ -3,7 +3,9 @@
 		domain="domain.tld"
 		path="/path"
 		is_public=1
-		password="strong-password"
+		admin="john"
+		password="1Strong-Password"
+		database="pgsql"
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
@@ -12,13 +14,17 @@
 		setup_private=1
 		setup_public=1
 		upgrade=1
-		upgrade=1		from_commit=d05248ceeffca8401dea6ac14bf7af7096345cbe
+		upgrade=1	from_commit=d05248ceeffca8401dea6ac14bf7af7096345cbe
+		# 0.9.5.2~ynh1
+		upgrade=1	from_commit=3c3d7d56540e12245f45dc7c3b9334285ac475ca
 		backup_restore=1
 		multi_instance=1
-		change_url=0
+		port_already_use=0
+		change_url=1
 ;;; Options
+Email=
 Notification=none
 ;;; Upgrade options
 	; commit=d05248ceeffca8401dea6ac14bf7af7096345cbe
 		name=Merge pull request #14
-manifest_arg=domain=DOMAIN&path=PATH&admin=USER&is_public=1
+		manifest_arg=domain=DOMAIN&path=PATH&admin=USER&is_public=1
diff --git a/conf/app.src b/conf/app.src
index aa31234..f3976ff 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -4,3 +4,4 @@ SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
 SOURCE_FILENAME=
+SOURCE_EXTRACT=true
diff --git a/conf/config.inc.php.mysql b/conf/config.inc.php.mysql
new file mode 100644
index 0000000..1c6445c
--- /dev/null
+++ b/conf/config.inc.php.mysql
@@ -0,0 +1,25 @@
+<?php
+/*
+This is an example for your configuration file,
+read comments and replace the "blanks".
+You can then copy the file in GALETTE_CONFIG_PATH/config.inc.php
+
+$Id$
+*/
+
+/* choose your database engine, values : pgsql|mysql */
+define("TYPE_DB", "mysql"); 
+/* hostname for the database */
+define("HOST_DB", "localhost"); 
+/* tcp port for the database */
+define("PORT_DB", "3306"); 
+/* the username for the database */
+define("USER_DB", "__DB_USER__");
+/* password for the username define above */
+define("PWD_DB", "__DB_PWD__");
+/* the database name */
+define("NAME_DB", "__DB_NAME__");
+/* tables name prefix (default is galette_) */
+define("PREFIX_DB", "galette_");
+/* FIXME will disappear soon */
+define("STOCK_FILES", "tempimages");
diff --git a/conf/config.inc.php.dist b/conf/config.inc.php.pgsql
similarity index 95%
rename from conf/config.inc.php.dist
rename to conf/config.inc.php.pgsql
index b41aacc..a466db5 100644
--- a/conf/config.inc.php.dist
+++ b/conf/config.inc.php.pgsql
@@ -14,7 +14,7 @@ define("HOST_DB", "localhost");
 /* tcp port for the database */
 define("PORT_DB", "5432"); 
 /* the username for the database */
-define("USER_DB", "__DB_NAME__");
+define("USER_DB", "__DB_USER__");
 /* password for the username define above */
 define("PWD_DB", "__DB_PWD__");
 /* the database name */
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 8ed74b8..d48ac66 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -2,11 +2,7 @@
 location __PATH__/ {
 
   # Path to source
-  alias __FINALPATH__/galette/webroot/;
-
-  if ($scheme = http) {
-    rewrite ^ https://$server_name$request_uri? permanent;
-  }
+  alias __FINALPATH__/galette/webroot/ ;
 
   index index.html index.php;
 
@@ -14,7 +10,6 @@ location __PATH__/ {
   client_max_body_size 50M;
 
   try_files $uri $uri/ @__APP__;
-
   location ~ [^/]\.php(/|$) {
     fastcgi_split_path_info ^(.+?\.php)(/.*)$;
     fastcgi_pass unix:/var/run/php/php__PHPVERSION__-fpm-__NAME__.sock;
diff --git a/doc/DESCRIPTION.md b/doc/DESCRIPTION.md
new file mode 100644
index 0000000..82d8bab
--- /dev/null
+++ b/doc/DESCRIPTION.md
@@ -0,0 +1 @@
+Galette is a membership management web application towards non profit organizations.
diff --git a/doc/DESCRIPTION_fr.md b/doc/DESCRIPTION_fr.md
new file mode 100644
index 0000000..5efbd75
--- /dev/null
+++ b/doc/DESCRIPTION_fr.md
@@ -0,0 +1 @@
+Outil de gestion d'adh�rents et de cotisation en ligne pour associations
diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
index bc45156..e69de29 100644
--- a/doc/DISCLAIMER.md
+++ b/doc/DISCLAIMER.md
@@ -1,4 +0,0 @@
-## Configuration
-
-1. The app will require to complete the registration process after the instllation is complete by visiting the domain on which Galette is installed.
-1. The Postgresql database credentials will be sent to the admin mail. Fill these details while doing the registration process.
diff --git a/doc/DISCLAIMER_fr.md b/doc/DISCLAIMER_fr.md
index 4d95474..e69de29 100644
--- a/doc/DISCLAIMER_fr.md
+++ b/doc/DISCLAIMER_fr.md
@@ -1,4 +0,0 @@
-## Configuration
-
-1. Une fois l'installation terminée, l'application devra terminer le processus d'enregistrement en **visitant le domaine** sur lequel Galette est installé.
-1. Les informations d'identification de la base de données Postgresql seront envoyées à **l'email admin**. Remplissez ces détails lors du processus d'inscription.
diff --git a/manifest.json b/manifest.json
index 16e62cf..6b5c43f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -2,11 +2,11 @@
     "name": "Galette",
     "id": "galette",
     "packaging_format": 1,
-        "description": {
+    "description": {
         "en": "Membership management web application for non profit organizations",
         "fr": "Outil de gestion d'adhérents et de cotisation en ligne pour associations"
     },
-    "version": "0.9.5.2~ynh1",
+    "version": "0.9.5.2~ynh2",
     "url": "https://www.galette.eu",
     "upstream": {
         "license": "GPL-3.0-or-later",
@@ -21,7 +21,7 @@
         "email": ""
     },
     "requirements": {
-        "yunohost": ">= 4.2.4"
+        "yunohost": ">= 4.3.0"
     },
     "multi_instance": true,
     "services": [
@@ -46,8 +46,25 @@
                 "help": {
                     "en": "If enabled, Galette will be accessible by people who do not have an account. This can be changed later via the webadmin.",
                     "fr": "Si cette case est cochée, Galette sera accessible aux personnes n’ayant pas de compte. Vous pourrez changer ceci plus tard via la webadmin."
-            },
+                },
                 "default": true
+            },
+            {
+                "name": "admin",
+                "type": "user"
+            },
+            {
+                "name": "password",
+                "type": "password"
+            },
+            {
+                "name": "database",
+                "type": "string",
+                "ask": {
+                    "en": "Choose SQL databe you want"
+                },
+                "choices": ["pgsql", "mysql"],
+                "default": "pgsql"
             }
         ]
     }
diff --git a/scripts/_common.sh b/scripts/_common.sh
index cbc1622..7e4130d 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,63 +4,21 @@
 # COMMON VARIABLES
 #=================================================
 
-# dependencies used by the app
-pkg_dependencies="postgresql"
-
 # dependencies used by the app
 YNH_PHP_VERSION="7.3"
 
-extra_php_dependencies="php${YNH_PHP_VERSION}-tidy php${YNH_PHP_VERSION}-intl php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-pgsql php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-curl"
+pkg_dependencies="php${YNH_PHP_VERSION}-tidy php${YNH_PHP_VERSION}-intl php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-gd php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mysql"
+
+pgsql_pkg_dependencies="postgresql php${YNH_PHP_VERSION}-pgsql"
+
+#=================================================
+# PERSONAL HELPERS
+#=================================================
 
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
 
-# Send an email to inform the administrator
-#
-# usage: ynh_send_readme_to_admin app_message [recipients]
-# | arg: app_message - The message to send to the administrator.
-# | arg: recipients - The recipients of this email. Use spaces to separate multiples recipients. - default: root
-#	example: "root admin@domain"
-#	If you give the name of a YunoHost user, ynh_send_readme_to_admin will find its email adress for you
-#	example: "root admin@domain user1 user2"
-ynh_send_readme_to_admin() {
-	local app_message="${1:-...No specific information...}"
-	local recipients="${2:-root}"
-
-	# Retrieve the email of users
-	find_mails () {
-		local list_mails="$1"
-		local mail
-		local recipients=" "
-		# Read each mail in argument
-		for mail in $list_mails
-		do
-			# Keep root or a real email address as it is
-			if [ "$mail" = "root" ] || echo "$mail" | grep --quiet "@"
-			then
-				recipients="$recipients $mail"
-			else
-				# But replace an user name without a domain after by its email
-				if mail=$(ynh_user_get_info "$mail" "mail" 2> /dev/null)
-				then
-					recipients="$recipients $mail"
-				fi
-			fi
-		done
-		echo "$recipients"
-	}
-	recipients=$(find_mails "$recipients")
-
-	local mail_subject="☁️🆈🅽🅷☁️: \`$app\` was just installed!"
-
-	local mail_message="This is an automated message from your beloved YunoHost server.
-Specific information for the application $app.
-$app_message
----
-Automatic diagnosis data from YunoHost
-$(yunohost tools diagnosis | grep -B 100 "services:" | sed '/services:/d')"
-
-	# Send the email to the recipients
-	echo "$mail_message" | mail -a "Content-Type: text/plain; charset=UTF-8" -s "$mail_subject" "$recipients"
-}
+#=================================================
+# FUTURE OFFICIAL HELPERS
+#=================================================
diff --git a/scripts/backup b/scripts/backup
index be2ba02..9da531e 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -6,6 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
+# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
@@ -19,6 +20,7 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
+ynh_print_info --message="Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -26,6 +28,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+database=$(ynh_app_setting_get --app=$app --key=database)
 
 #=================================================
 # DECLARE DATA AND CONF FILES TO BACKUP
@@ -50,13 +53,6 @@ ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_backup --src_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
-#=================================================
-# BACKUP THE POSTGRESQL DATABASE
-#=================================================
-ynh_print_info --message="Backing up the PostgreSQL database..."
-
-ynh_psql_dump_db --database="$db_name" > db.sql
-
 #=================================================
 # SPECIFIC BACKUP
 #=================================================
@@ -65,6 +61,19 @@ ynh_psql_dump_db --database="$db_name" > db.sql
 
 ynh_backup --src_path="/etc/logrotate.d/$app"
 
+#=================================================
+# BACKUP THE SQL DATABASE
+#=================================================
+
+if [ $database == "pgsql" ]
+then
+	ynh_print_info --message="Backing up the PostgreSQL database..."
+	ynh_psql_dump_db --database="$db_name" > db.sql
+else
+	ynh_print_info --message="Backing up the MySQL database..."
+ynh_mysql_dump_db --database="$db_name" > db.sql
+fi
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
new file mode 100644
index 0000000..d49f7fb
--- /dev/null
+++ b/scripts/change_url
@@ -0,0 +1,121 @@
+#!/bin/bash
+
+#=================================================
+# GENERIC STARTING
+#=================================================
+# IMPORT GENERIC HELPERS
+#=================================================
+
+source _common.sh
+source /usr/share/yunohost/helpers
+
+#=================================================
+# RETRIEVE ARGUMENTS
+#=================================================
+
+old_domain=$YNH_APP_OLD_DOMAIN
+old_path=$YNH_APP_OLD_PATH
+
+new_domain=$YNH_APP_NEW_DOMAIN
+new_path=$YNH_APP_NEW_PATH
+
+app=$YNH_APP_INSTANCE_NAME
+
+#=================================================
+# LOAD SETTINGS
+#=================================================
+ynh_script_progression --message="Loading installation settings..."
+
+# Needed for helper "ynh_add_nginx_config"
+final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+
+# Add settings here as needed by your application
+#db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+#db_user=$db_name
+#db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
+
+#=================================================
+# BACKUP BEFORE CHANGE URL THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..."
+
+# Backup the current version of the app
+ynh_backup_before_upgrade
+ynh_clean_setup () {
+	ynh_clean_check_starting
+	# Remove the new domain config file, the remove script won't do it as it doesn't know yet its location.
+	ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+
+	# Restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+# Exit if an error occurs during the execution of the script
+ynh_abort_if_errors
+
+#=================================================
+# CHECK WHICH PARTS SHOULD BE CHANGED
+#=================================================
+
+change_domain=0
+if [ "$old_domain" != "$new_domain" ]
+then
+	change_domain=1
+fi
+
+change_path=0
+if [ "$old_path" != "$new_path" ]
+then
+	change_path=1
+fi
+
+#=================================================
+# STANDARD MODIFICATIONS
+#=================================================
+# MODIFY URL IN NGINX CONF
+#=================================================
+ynh_script_progression --message="Updating NGINX web server configuration..."
+
+nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
+
+# Change the path in the NGINX config file
+if [ $change_path -eq 1 ]
+then
+	# Make a backup of the original NGINX config file if modified
+	ynh_backup_if_checksum_is_different --file="$nginx_conf_path"
+	# Set global variables for NGINX helper
+	domain="$old_domain"
+	path_url="$new_path"
+	# Create a dedicated NGINX config
+	ynh_add_nginx_config
+fi
+
+# Change the domain for NGINX
+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/$app.conf
+	# Store file checksum for the new config file location
+	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+fi
+
+#=================================================
+# SPECIFIC MODIFICATIONS
+#=================================================
+# ...
+#=================================================
+
+#=================================================
+# GENERIC FINALISATION
+#=================================================
+# RELOAD NGINX
+#=================================================
+ynh_script_progression --message="Reloading NGINX web server..."
+
+ynh_systemd_action --service_name=nginx --action=reload
+
+#=================================================
+# END OF SCRIPT
+#=================================================
+
+ynh_script_progression --message="Change of URL completed for $app"
diff --git a/scripts/install b/scripts/install
old mode 100755
new mode 100644
index f700a8f..999f730
--- a/scripts/install
+++ b/scripts/install
@@ -23,17 +23,21 @@ ynh_abort_if_errors
 domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
-timezone="$(cat /etc/timezone)"
+admin=$YNH_APP_ARG_ADMIN
+password=$YNH_APP_ARG_PASSWORD
+database=$YNH_APP_ARG_DATABASE
 
 app=$YNH_APP_INSTANCE_NAME
 
+timezone="$(cat /etc/timezone)"
+
 #=================================================
 # CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
 #=================================================
 ynh_script_progression --message="Validating installation parameters..." --weight=1
 
 final_path=/var/www/$app
-test ! -e "$final_path" || ynh_die "This path already contains a folder"
+test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
 
 # Register (book) web path
 ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url
@@ -45,24 +49,22 @@ ynh_script_progression --message="Storing installation settings..." --weight=1
 
 ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
+ynh_app_setting_set --app=$app --key=database --value=$database
 
+#=================================================
+# STANDARD MODIFICATIONS
 #=================================================
 # INSTALL DEPENDENCIES
 #=================================================
 ynh_script_progression --message="Installing dependencies..." --weight=20
 
+if [ $database == "pgsql" ]
+then
+	pkg_dependencies="$pkg_dependencies $pgsql_pkg_dependencies"
+fi
+
 ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
-#=================================================
-# CREATE A POSTGRESQL DATABASE
-#=================================================
-ynh_script_progression --message="Creating a PostgreSQL database..." --weight=2
-
-db_name=$(ynh_sanitize_dbid --db_name=$app)
-ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-ynh_psql_test_if_first_run
-ynh_psql_setup_db --db_user=$db_name --db_name=$db_name
-
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
@@ -71,6 +73,25 @@ ynh_script_progression --message="Configuring system user..." --weight=1
 # Create a system user
 ynh_system_user_create --username=$app --home_dir="$final_path"
 
+#=================================================
+# CREATE A SQL DATABASE
+#=================================================
+
+db_name=$(ynh_sanitize_dbid --db_name=$app)
+db_user=$db_name
+ynh_app_setting_set --app=$app --key=db_name --value=$db_name
+if [ $database == "pgsql" ]
+then
+	ynh_script_progression --message="Creating a PostgreSQL database..." --weight=2
+	ynh_psql_test_if_first_run
+	ynh_psql_setup_db --db_user=$db_user --db_name=$db_name
+	ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
+else
+	ynh_script_progression --message="Creating a MySQL database..." --weight=2
+	ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name
+	ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
+fi
+
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
@@ -80,9 +101,9 @@ ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$final_path"
 
-chmod 750 $final_path
-chmod -R o-rwx $final_path
-chown -R $app:www-data $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
 #=================================================
 # NGINX CONFIGURATION
@@ -97,18 +118,45 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Configuring PHP-FPM..." --weight=2
 
-ynh_add_fpm_config --package="$extra_php_dependencies"
+# Create a dedicated PHP-FPM config
+ynh_add_fpm_config
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
-# CONFIGURE GALETTE
+# SPECIFIC SETUP
 #=================================================
-ynh_script_progression --message="Configuring Galette..." --weight=1
+# ADD A CONFIGURATION
+#=================================================
+ynh_script_progression --message="Adding a configuration file..." --weight=1
 
-ynh_add_config --template="../conf/config.inc.php.dist" --destination="$final_path/galette/config/config.inc.php"
+ynh_add_config --template="../conf/config.inc.php.$database" --destination="$final_path/galette/config/config.inc.php"
+
+chmod 400 "$final_path/galette/config/config.inc.php"
+chown $app:$app "$final_path/galette/config/config.inc.php"
 
 #=================================================
-# GENERIC FINALIZATION
+# SETUP APPLICATION WITH CURL
+#=================================================
+ynh_script_progression --message="Setuping application with CURL..."
+
+# Set the app as temporarily public for curl call
+ynh_script_progression --message="Configuring SSOwat..."
+# Making the app public for curl
+ynh_permission_update --permission="main" --add="visitors"
+
+# Installation with curl
+ynh_script_progression --message="Finalizing installation..."
+ynh_local_curl "/installer.php" "install_permsok=1"
+ynh_local_curl "/installer.php"  "install_type=i"
+ynh_local_curl "/installer.php"  "install_dbtype=pgsql" "install_dbhost=localhost" "install_dbport=5432" "install_dbuser=$db_user" "install_dbpass=$db_pwd" "install_dbname=$db_name" "install_dbprefix=galette_"
+ynh_local_curl "/installer.php"  "install_dbperms_ok=1"
+ynh_local_curl "/installer.php"  "install_dbwrite_ok=1"
+ynh_local_curl "/installer.php"  "install_adminlogin=$admin" "install_adminpass=$password" "install_adminpass_verif=$password"
+ynh_local_curl "/installer.php"  "install_prefs_ok=1"
+
+# Remove the public access
+ynh_permission_update --permission="main" --remove="visitors"
+
 #=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
@@ -122,6 +170,8 @@ do
    chmod g+rwx $final_path/galette/data/$folder
 done
 
+#=================================================
+# GENERIC FINALIZATION
 #=================================================
 # SETUP LOGROTATE
 #=================================================
@@ -135,9 +185,11 @@ ynh_use_logrotate
 #=================================================
 ynh_script_progression --message="Configuring permissions..." --weight=1
 
-# Make app public if necessary or protect it
+# Make app public if necessary
 if [ $is_public -eq 1 ]
 then
+	# Everyone can access the app.
+	# The "main" permission is automatically created before the install script.
 	ynh_permission_update --permission="main" --add="visitors"
 fi
 
@@ -148,30 +200,6 @@ ynh_script_progression --message="Reloading NGINX web server..." --weight=2
 
 ynh_systemd_action --service_name=nginx --action=reload
 
-#=================================================
-# SEND A README FOR THE ADMIN
-#=================================================
-
-message="Galette need you to finish the installation manually.
-
-Please open "https://$domain/$path_url/installer.php" and finish the install process.
-
-Database information you'll need:
-Type:		pgsql
-Host:		localhost
-Port:		5432
-User:		"$db_name"
-Password:	"$db_pwd"
-Name:		"$db_name"
-
-Important! Once done, please remember to run as root or with sudo:
-Restrict the rights of the config file \`chmod -R 500 "$final_path/galette/config"\`
-\`Remove the install file "$final_path/galette/install"\`
-
-If you facing an issue or want to improve this app, please open a new issue in this project: https://github.com/YunoHost-Apps/galette_ynh"
-
-ynh_send_readme_to_admin "$message"
-
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/remove b/scripts/remove
old mode 100755
new mode 100644
index 08bd945..7df80a7
--- a/scripts/remove
+++ b/scripts/remove
@@ -21,22 +21,31 @@ port=$(ynh_app_setting_get --app=$app --key=port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
+database=$(ynh_app_setting_get --app=$app --key=database)
 
 #=================================================
-# REMOVE THE POSTGRESQL DATABASE
+# STANDARD REMOVE
+#=================================================
+# REMOVE LOGROTATE CONFIGURATION
+#=================================================
+ynh_script_progression --message="Removing logrotate configuration..."
+
+# Remove the app-specific logrotate config
+ynh_remove_logrotate
+
+#=================================================
+# REMOVE THE SQL DATABASE
 #=================================================
-ynh_script_progression --message="Removing the PostgreSQL database..." --weight=2
 
 # Remove a database if it exists, along with the associated user
-ynh_psql_remove_db --db_user=$db_user --db_name=$db_name
-
-#=================================================
-# REMOVE DEPENDENCIES
-#=================================================
-ynh_script_progression --message="Removing dependencies..." --weight=1
-
-# Remove metapackage and its dependencies
-ynh_remove_app_dependencies
+if [ $database == "pgsql" ]
+then
+	ynh_script_progression --message="Removing the PostgreSQL database..." --weight=2
+	ynh_psql_remove_db --db_user=$db_user --db_name=$db_name
+else
+	ynh_script_progression --message="Removing the MySQL database..." --weight=2
+	ynh_mysql_remove_db --db_user=$db_user --db_name=$db_name
+fi
 
 #=================================================
 # REMOVE APP MAIN DIR
@@ -63,11 +72,12 @@ ynh_script_progression --message="Removing PHP-FPM configuration..." --weight=3
 ynh_remove_fpm_config
 
 #=================================================
-# REMOVE LOGROTATE CONFIGURATION
+# REMOVE DEPENDENCIES
 #=================================================
+ynh_script_progression --message="Removing dependencies..." --weight=1
 
-# Remove the app-specific logrotate config
-ynh_remove_logrotate
+# Remove metapackage and its dependencies
+ynh_remove_app_dependencies
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/restore b/scripts/restore
index 2dc6085..c9e78bf 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -6,7 +6,7 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
+# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
@@ -20,7 +20,7 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
-ynh_script_progression --message="Loading settings..." --weight=1
+ynh_script_progression --message="Loading installation settings..." --weight=1
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -29,8 +29,8 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
-db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+database=$(ynh_app_setting_get --app=$app --key=database)
 timezone="$(cat /etc/timezone)"
 
 #=================================================
@@ -39,14 +39,14 @@ timezone="$(cat /etc/timezone)"
 ynh_script_progression --message="Validating restoration parameters..." --weight=2
 
 test ! -d $final_path \
-	|| ynh_die "There is already a directory: $final_path "
+	|| ynh_die --message="There is already a directory: $final_path "
 
 #=================================================
 # STANDARD RESTORATION STEPS
 #=================================================
 # RESTORE THE NGINX CONFIGURATION
 #=================================================
-ynh_script_progression --message="Restoring the NGINX configuration..." --weight=1
+ynh_script_progression --message="Restoring the NGINX web server configuration..." --weight=1
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
@@ -75,7 +75,8 @@ chown -R $app:www-data "$final_path"
 ynh_script_progression --message="Restoring the PHP-FPM configuration..." --weight=1
 
 ynh_restore_file --origin_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
-ynh_add_fpm_config --package="$extra_php_dependencies"
+ynh_add_fpm_config
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # REINSTALL DEPENDENCIES
@@ -83,16 +84,30 @@ ynh_add_fpm_config --package="$extra_php_dependencies"
 ynh_script_progression --message="Reinstalling dependencies..." --weight=6
 
 # Define and install dependencies
+if [ $database == "pgsql" ]
+then
+	pkg_dependencies="$pkg_dependencies $pgsql_pkg_dependencies"
+fi
+
 ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
-# RESTORE THE POSTGRESQL DATABASE
+# RESTORE THE SQL DATABASE
 #=================================================
-ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=6
 
-ynh_psql_test_if_first_run
-ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
-ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name
+if [ $database == "pgsql" ]
+then
+	ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=6
+	db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
+	ynh_psql_test_if_first_run
+	ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+	ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name
+else
+	ynh_script_progression --message="Restoring the MySQL database..." --weight=6
+	db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
+	ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+	ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql
+fi
 
 #=================================================
 # RESTORE USER RIGHTS
@@ -110,6 +125,7 @@ done
 #=================================================
 # RESTORE THE LOGROTATE CONFIGURATION
 #=================================================
+ynh_script_progression --message="Restoring the logrotate configuration..." --weight=1
 
 ynh_restore_file --origin_path="/etc/logrotate.d/$app"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 705f109..3af57ab 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -21,13 +21,15 @@ path_url=$(ynh_app_setting_get --app=$app --key=path)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$db_name
-db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
+db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+database=$(ynh_app_setting_get --app=$app --key=database)
 timezone="$(cat /etc/timezone)"
 
 #=================================================
 # CHECK VERSION
 #=================================================
+ynh_script_progression --message="Checking version..."
 
 upgrade_type=$(ynh_check_app_version_changed)
 
@@ -45,6 +47,8 @@ ynh_clean_setup () {
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
+#=================================================
+# STANDARD UPGRADE STEPS
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
@@ -56,10 +60,10 @@ if [ -z "$db_name" ]; then
 	ynh_app_setting_set --app=$app --key=db_name --value=$db_name
 fi
 
-# If db_name doesn't exist, create it
+# If db_pwd doesn't exist, create it
 if [ -z "$db_pwd" ]; then
 	db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
-	ynh_app_setting_set --app=$app --key=psqlpwd --value=$db_pwd
+	ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
 fi
 
 # If final_path doesn't exist, create it
@@ -83,14 +87,14 @@ ynh_script_progression --message="Making sure dedicated system user exists..." -
 # Create a dedicated user (if not existing)
 ynh_system_user_create --username=$app --home_dir="$final_path"
 
-#=================================================
-# STANDARD UPGRADE STEPS
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
+	ynh_script_progression --message="Upgrading source files..."
+
 	# Download, check integrity, uncompress and patch the source from app.src
 	mv "$final_path" "$final_path.old"
 
@@ -107,9 +111,9 @@ then
 	ynh_secure_remove "$final_path.old"
 fi
 
-chmod 750 $final_path
-chmod -R o-rwx $final_path
-chown -R $app:www-data $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 
 #=================================================
 # NGINX CONFIGURATION
@@ -124,7 +128,12 @@ ynh_add_nginx_config
 #=================================================
 ynh_script_progression --message="Upgrading dependencies..." --weight=1
 
-ynh_install_app_dependencies $pkg_dependencies
+if [ $database == "pgsql" ]
+then
+	pkg_dependencies="$pkg_dependencies $pgsql_pkg_dependencies"
+fi
+
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
 #=================================================
 # PHP-FPM CONFIGURATION
@@ -132,20 +141,11 @@ ynh_install_app_dependencies $pkg_dependencies
 ynh_script_progression --message="Upgrading PHP-FPM configuration..." --weight=2
 
 # Create a dedicated PHP-FPM config
-ynh_add_fpm_config --package="$extra_php_dependencies"
+ynh_add_fpm_config
 
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
-# SETUP LOGROTATE
-#=================================================
-
-# Use logrotate to manage app-specific logfile(s)
-ynh_use_logrotate --non-append
-
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
 
@@ -160,6 +160,14 @@ done
 
 #=================================================
 # GENERIC FINALIZATION
+#=================================================
+# SETUP LOGROTATE
+#=================================================
+ynh_script_progression --message="Upgrading logrotate configuration..." --weight=1
+
+# Use logrotate to manage app-specific logfile(s)
+ynh_use_logrotate --non-append
+
 #=================================================
 # RELOAD NGINX
 #=================================================