diff --git a/check_process b/check_process
index ae7a65f..8a4c77d 100644
--- a/check_process
+++ b/check_process
@@ -3,10 +3,8 @@
 		domain="domain.tld"
 		path="/path"
 		admin="john"
-		#language="fr"
 		is_public=1
 		password="pass"
-		#port="666"
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
@@ -18,8 +16,6 @@
 		upgrade=1 from_commit=a6b2615101887e3235aab0b95607eb1b58507a4c
 		backup_restore=1
 		multi_instance=1
-		incorrect_path=1
-		port_already_use=0
 		change_url=0
 ;;; Options
 Email=
diff --git a/conf/cheky.cron b/conf/cheky.cron
index cf1909d..06aeb65 100644
--- a/conf/cheky.cron
+++ b/conf/cheky.cron
@@ -1 +1 @@
-*/5 * * * * __USER__ /usr/bin/php -f __FINALPATH__/check.php
+*/5 * * * * __APP__ /usr/bin/php__PHPVERSION__ -f __FINALPATH__/check.php
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 8ae6307..02ab5bc 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -9,7 +9,6 @@ location __PATH__/ {
     rewrite ^ https://$server_name$request_uri? permanent;
   }
 
-### Example PHP configuration (remove it if not used)
   index index.php;
 
   # Common parameter to increase upload size limit in conjuction with dedicated php-fpm file
@@ -18,7 +17,7 @@ location __PATH__/ {
   try_files $uri $uri/ index.php;
   location ~ [^/]\.php(/|$) {
     fastcgi_split_path_info ^(.+?\.php)(/.*)$;
-    fastcgi_pass unix:/var/run/php5-fpm-__NAME__.sock;
+    fastcgi_pass unix:/var/run/php__PHPVERSION__-fpm-__NAME__.sock;
 
     fastcgi_index index.php;
     include fastcgi_params;
@@ -26,7 +25,7 @@ location __PATH__/ {
     fastcgi_param PATH_INFO $fastcgi_path_info;
     fastcgi_param SCRIPT_FILENAME $request_filename;
   }
-### End of PHP configuration part
+
 
   # Very important security restriction
   # See https://forum.cheky.net/information-sur-message-avertissement-securite-t553-p1.html#p2127
diff --git a/conf/php-fpm.conf b/conf/php-fpm.conf
index 9018c9d..ab1a471 100644
--- a/conf/php-fpm.conf
+++ b/conf/php-fpm.conf
@@ -33,7 +33,7 @@ group = __USER__
 ;                            (IPv6 and IPv4-mapped) on a specific port;
 ;   '/path/to/unix/socket' - to listen on a unix socket.
 ; Note: This value is mandatory.
-listen = /var/run/php/php7.0-fpm-__NAMETOCHANGE__.sock
+listen = /var/run/php/php__PHPVERSION__-fpm-__NAMETOCHANGE__.sock
 
 ; Set listen(2) backlog.
 ; Default Value: 511 (-1 on FreeBSD and OpenBSD)
@@ -41,7 +41,7 @@ listen = /var/run/php/php7.0-fpm-__NAMETOCHANGE__.sock
 
 ; Set permissions for unix socket, if one is used. In Linux, read/write
 ; permissions must be set in order to allow connections from a web server. Many
-; BSD-derived systems allow connections regardless of permissions. 
+; BSD-derived systems allow connections regardless of permissions.
 ; Default Values: user and group are set as the running user
 ;                 mode is set to 0660
 listen.owner = www-data
@@ -131,7 +131,7 @@ pm.max_spare_servers = 3
 ; Note: Used only when pm is set to 'ondemand'
 ; Default Value: 10s
 ;pm.process_idle_timeout = 10s;
- 
+
 ; The number of requests each child process should execute before respawning.
 ; This can be useful to work around memory leaks in 3rd party libraries. For
 ; endless request processing specify '0'. Equivalent to PHP_FCGI_MAX_REQUESTS.
@@ -184,7 +184,7 @@ pm.max_spare_servers = 3
 ;
 ; By default the status page only outputs short status. Passing 'full' in the
 ; query string will also return status for each pool process.
-; Example: 
+; Example:
 ;   http://www.foo.bar/status?full
 ;   http://www.foo.bar/status?json&full
 ;   http://www.foo.bar/status?html&full
@@ -297,7 +297,7 @@ pm.max_spare_servers = 3
 ;      - ....
 ;  %p: PID of the child that serviced the request
 ;  %P: PID of the parent of the child that serviced the request
-;  %q: the query string 
+;  %q: the query string
 ;  %Q: the '?' character if query string exists
 ;  %r: the request URI (without the query string, see %q and %Q)
 ;  %R: remote IP address
@@ -316,40 +316,40 @@ pm.max_spare_servers = 3
 ;
 ; Default: "%R - %u %t \"%m %r\" %s"
 ;access.format = "%R - %u %t \"%m %r%Q%q\" %s %f %{mili}d %{kilo}M %C%%"
- 
+
 ; The log file for slow requests
 ; Default Value: not set
 ; Note: slowlog is mandatory if request_slowlog_timeout is set
-slowlog = /var/log/nginx/__NAMETOCHANGE__.slow.log
- 
+;slowlog = log/$pool.log.slow
+
 ; The timeout for serving a single request after which a PHP backtrace will be
 ; dumped to the 'slowlog' file. A value of '0s' means 'off'.
 ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
 ; Default Value: 0
-request_slowlog_timeout = 5s
- 
+;request_slowlog_timeout = 0
+
 ; The timeout for serving a single request after which the worker process will
 ; be killed. This option should be used when the 'max_execution_time' ini option
 ; does not stop script execution for some reason. A value of '0' means 'off'.
 ; Available units: s(econds)(default), m(inutes), h(ours), or d(ays)
 ; Default Value: 0
 request_terminate_timeout = 1d
- 
+
 ; Set open file descriptor rlimit.
 ; Default Value: system defined value
 ;rlimit_files = 1024
- 
+
 ; Set max core size rlimit.
 ; Possible Values: 'unlimited' or an integer greater or equal to 0
 ; Default Value: system defined value
 ;rlimit_core = 0
- 
+
 ; Chroot to this directory at the start. This value must be defined as an
 ; absolute path. When this value is not set, chroot is not used.
 ; Note: you can prefix with '$prefix' to chroot to the pool prefix or one
 ; of its subdirectories. If the pool prefix is not set, the global prefix
 ; will be used instead.
-; Note: chrooting is a great security feature and should be used whenever 
+; Note: chrooting is a great security feature and should be used whenever
 ;       possible. However, all PHP paths will be relative to the chroot
 ;       (error_log, sessions.save_path, ...).
 ; Default Value: not set
@@ -383,7 +383,7 @@ chdir = __FINALPATH__
 ; Note: set an empty value to allow all extensions.
 ; Default Value: .php
 ;security.limit_extensions = .php .php3 .php4 .php5 .php7
- 
+
 ; Pass environment variables like LD_LIBRARY_PATH. All $VARIABLEs are taken from
 ; the current environment.
 ; Default Value: clean env
@@ -397,7 +397,7 @@ chdir = __FINALPATH__
 ; overwrite the values previously defined in the php.ini. The directives are the
 ; same as the PHP SAPI:
 ;   php_value/php_flag             - you can set classic ini defines which can
-;                                    be overwritten from PHP call 'ini_set'. 
+;                                    be overwritten from PHP call 'ini_set'.
 ;   php_admin_value/php_admin_flag - these directives won't be overwritten by
 ;                                     PHP call 'ini_set'
 ; For php_*flag, valid values are on, off, 1, 0, true, false, yes or no.
diff --git a/manifest.json b/manifest.json
index 2a25012..3f180cc 100644
--- a/manifest.json
+++ b/manifest.json
@@ -3,8 +3,8 @@
     "id": "cheky",
     "packaging_format": 1,
     "description": {
-        "en": "Cheky monitors French classifieds websites LeBonCoin and SeLoger.",
-        "fr": "Cheky surveille pour vous LeBonCoin et SeLoger."
+        "en": "Monitors French classifieds websites LeBonCoin and SeLoger.",
+        "fr": "Surveille pour vous LeBonCoin et SeLoger."
     },
     "version": "4.4.1~ynh4",
     "url": "https://www.cheky.net",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index c85fc0e..af0224b 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,24 +4,12 @@
 # PERSONAL HELPERS
 #=================================================
 
+YNH_PHP_VERSION="7.3"
+
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
 
-# Execute a command as another user
-# usage: exec_as USER COMMAND [ARG ...]
-# Source : https://github.com/YunoHost-Apps/Experimental_helpers/tree/master/ynh_exec_as
-exec_as() {
-  local USER=$1
-  shift 1
-
-  if [[ $USER = $(whoami) ]]; then
-    eval "$@"
-  else
-    sudo -u "$USER" "$@"
-  fi
-}
-
 #=================================================
 # FUTURE OFFICIAL HELPERS
 #=================================================
diff --git a/scripts/backup b/scripts/backup
index bea564c..9f6005d 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -26,29 +26,30 @@ app=$YNH_APP_INSTANCE_NAME
 final_path=$(ynh_app_setting_get $app final_path)
 domain=$(ynh_app_setting_get $app domain)
 db_name=$(ynh_app_setting_get $app db_name)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
-# STANDARD BACKUP STEPS
+# DECLARE DATA AND CONF FILES TO BACKUP
+#=================================================
+ynh_print_info --message="Declaring files to be backed up..."
+
 #=================================================
 # BACKUP THE APP MAIN DIR
 #=================================================
-ynh_print_info "Backing up the main app directory..."
 
 ynh_backup "$final_path"
 
 #=================================================
 # BACKUP THE NGINX CONFIGURATION
 #=================================================
-ynh_print_info "Backing up nginx web server configuration..."
 
 ynh_backup "/etc/nginx/conf.d/$domain.d/$app.conf"
 
 #=================================================
 # BACKUP THE PHP-FPM CONFIGURATION
 #=================================================
-ynh_print_info "Backing up php-fpm configuration..."
 
-ynh_backup "/etc/php/7.0/fpm/pool.d/$app.conf"
+ynh_backup "/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
 #=================================================
 # BACKUP THE MYSQL DATABASE
@@ -57,12 +58,6 @@ ynh_print_info "Backing up the MySQL database..."
 
 ynh_mysql_dump_db "$db_name" > db.sql
 
-#=================================================
-# SPECIFIC BACKUP
-#=================================================
-# ...
-#=================================================
-
 #=================================================
 # BACKUP A CRON FILE
 #=================================================
diff --git a/scripts/install b/scripts/install
index 31e0bed..86e9792 100644
--- a/scripts/install
+++ b/scripts/install
@@ -121,10 +121,9 @@ ynh_replace_string "__FINALPATH__" "$final_path" "$cron_path"
 chown -R $app: $final_path
 
 # Set the app as temporarily public for curl call
-ynh_print_info "Configuring SSOwat..."
-ynh_app_setting_set $app skipped_uris "/"
-# Reload SSOwat config
-yunohost app ssowatconf
+ynh_script_progression --message="Configuring SSOwat..."
+# Making the app public for curl
+ynh_permission_update --permission="main" --add="visitors"
 
 # Reload Nginx
 systemctl reload nginx
@@ -136,10 +135,7 @@ db_pwd=$(ynh_app_setting_get $app mysqlpwd)
 ynh_local_curl "/index.php?mod=install" "password=$password" "confirmPassword=$password" "type=db" "db[host]=localhost" "db[user]=$db_name" "db[password]=$db_pwd" "db[dbname]=$db_name"
 
 # Remove the public access
-if [ $is_public -eq 0 ]
-then
-	ynh_app_setting_delete $app skipped_uris
-fi
+ynh_permission_update --permission="main" --remove="visitors"
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/restore b/scripts/restore
index 7441ba8..11f83bb 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -19,7 +19,7 @@ ynh_abort_if_errors
 #=================================================
 # LOAD SETTINGS
 #=================================================
-ynh_print_info "Loading settings..."
+ynh_script_progression --message="Loading settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -27,11 +27,12 @@ domain=$(ynh_app_setting_get $app domain)
 path_url=$(ynh_app_setting_get $app path)
 final_path=$(ynh_app_setting_get $app final_path)
 db_name=$(ynh_app_setting_get $app db_name)
+phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
 # CHECK IF THE APP CAN BE RESTORED
 #=================================================
-ynh_print_info "Validating restoration parameters..."
+ynh_script_progression --message="Validating restoration parameters..."
 
 ynh_webpath_available $domain $path_url \
 	|| ynh_die "Path not available: ${domain}${path_url}"
@@ -49,14 +50,14 @@ ynh_restore_file "/etc/nginx/conf.d/$domain.d/$app.conf"
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
-ynh_print_info "Restoring the app main directory..."
+ynh_script_progression --message="Restoring the app main directory..."
 
 ynh_restore_file "$final_path"
 
 #=================================================
 # RECREATE THE DEDICATED USER
 #=================================================
-ynh_print_info "Recreating the dedicated system user..."
+ynh_script_progression --message="Recreating the dedicated system user..."
 
 # Create the dedicated user (if not existing)
 ynh_system_user_create $app
@@ -74,11 +75,12 @@ chown -R $app: $final_path/var
 # RESTORE THE PHP-FPM CONFIGURATION
 #=================================================
 
-ynh_restore_file "/etc/php/7.0/fpm/pool.d/$app.conf"
+ynh_restore_file "/etc/php/$phpversion/fpm/pool.d/$app.conf"
+
 #=================================================
 # RESTORE THE MYSQL DATABASE
 #=================================================
-ynh_print_info "Restoring the MySQL database..."
+ynh_script_progression --message="Restoring the MySQL database..."
 
 db_pwd=$(ynh_app_setting_get $app mysqlpwd)
 ynh_mysql_setup_db $db_name $db_name $db_pwd
@@ -95,13 +97,13 @@ ynh_restore_file "/etc/cron.d/$app"
 #=================================================
 # RELOAD NGINX AND PHP-FPM
 #=================================================
-ynh_print_info "Reloading nginx web server and php-fpm..."
+ynh_script_progression --message="Reloading NGINX web server and PHP-FPM..." --weight=1
 
-systemctl reload php7.3-fpm
-systemctl reload nginx
+ynh_systemd_action --service_name=php$phpversion-fpm --action=reload
+ynh_systemd_action --service_name=nginx --action=reload
 
 #=================================================
 # END OF SCRIPT
 #=================================================
 
-ynh_print_info "Restoration completed for $app"
+ynh_script_progression --message="Restoration completed for $app" -last
diff --git a/scripts/upgrade b/scripts/upgrade
index 8251efa..deaab6a 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -12,7 +12,7 @@ source /usr/share/yunohost/helpers
 #=================================================
 # LOAD SETTINGS
 #=================================================
-ynh_print_info "Loading installation settings..."
+ynh_script_progression --message="Loading installation settings..."
 
 app=$YNH_APP_INSTANCE_NAME
 
@@ -25,7 +25,7 @@ db_name=$(ynh_app_setting_get $app db_name)
 #=================================================
 # ENSURE DOWNWARD COMPATIBILITY
 #=================================================
-ynh_print_info "Ensuring downward compatibility..."
+ynh_script_progression --message="Ensuring downward compatibility..."
 
 # If db_name doesn't exist, create it
 if [ -z $db_name ]; then
@@ -49,7 +49,7 @@ fi
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
-ynh_print_info "Backing up the app before upgrading (may take a while)..."
+ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."
 
 # Backup the current version of the app
 ynh_backup_before_upgrade
@@ -65,7 +65,7 @@ ynh_abort_if_errors
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
-ynh_print_info "Upgrading source files..."
+ynh_script_progression --message="Upgrading source files..."
 
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source "$final_path"
@@ -73,7 +73,7 @@ ynh_setup_source "$final_path"
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
-ynh_print_info "Upgrading nginx web server configuration..."
+ynh_script_progression --message="Upgrading nginx web server configuration..."
 
 # Create a dedicated nginx config
 ynh_add_nginx_config
@@ -81,7 +81,7 @@ ynh_add_nginx_config
 #=================================================
 # CREATE DEDICATED USER
 #=================================================
-ynh_print_info "Making sure dedicated system user exists..."
+ynh_script_progression --message="Making sure dedicated system user exists..."
 
 # Create a dedicated user (if not existing)
 ynh_system_user_create $app
@@ -89,7 +89,7 @@ ynh_system_user_create $app
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
-ynh_print_info "Upgrading php-fpm configuration..."
+ynh_script_progression --message="Upgrading php-fpm configuration..."
 
 # Create a dedicated php-fpm config
 ynh_add_fpm_config
@@ -97,14 +97,14 @@ ynh_add_fpm_config
 #=================================================
 # SPECIFIC UPGRADE
 #=================================================
-ynh_print_info "Running specific upgrade..."
+ynh_script_progression --message="Running specific upgrade..."
 
 # Give full access to "$app" so php script can do "its own magic stuff"
 chown -R $app: $final_path
 
 # Copy Yunohost custom script to cheky folder and launch it
 cp yunohost_upgrade_cheky.php $final_path/others/update/
-exec_as "$app" /usr/bin/php $final_path/others/update/yunohost_upgrade_cheky.php $final_path
+ynh_exec_as "$app" /usr/bin/php $final_path/others/update/yunohost_upgrade_cheky.php $final_path
 
 #=================================================
 # GENERIC FINALIZATION
@@ -122,7 +122,7 @@ chown -R $app: $final_path/static/media/annonce   # needed for "Mes annonces sau
 #=================================================
 # RELOAD NGINX
 #=================================================
-ynh_print_info "Reloading nginx web server..."
+ynh_script_progression --message="Reloading nginx web server..."
 
 systemctl reload nginx
 
@@ -130,4 +130,4 @@ systemctl reload nginx
 # END OF SCRIPT
 #=================================================
 
-ynh_print_info "Upgrade of $app completed"
+ynh_script_progression --message="Upgrade of $app completed"