diff --git a/check_process b/check_process
index 232d16c..366d1ab 100644
--- a/check_process
+++ b/check_process
@@ -1,6 +1,3 @@
-# See here for more information
-# https://github.com/YunoHost/package_check#syntax-check_process-file
-
 ;; Test complet
 	; Manifest
 		domain="domain.tld"
@@ -22,7 +19,6 @@
 		upgrade=1
 		backup_restore=1
 		multi_instance=1
-		port_already_use=0
 		change_url=1
 ;;; Options
 Email=squeak@eauchat.org
diff --git a/manifest.json b/manifest.json
index 0047428..f9188f0 100644
--- a/manifest.json
+++ b/manifest.json
@@ -15,7 +15,7 @@
       "url": "https://squeak.eauchat.org"
     },
     "requirements": {
-        "yunohost": ">= 4.1.7"
+        "yunohost": ">= 4.2.4"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/install b/scripts/install
index bbd6497..fb71df8 100755
--- a/scripts/install
+++ b/scripts/install
@@ -80,21 +80,8 @@ ynh_app_setting_set --app=$app --key=port --value=$port
 #=================================================
 ynh_script_progression --message="Installing dependencies..." --weight=6
 
-### `ynh_install_app_dependencies` allows you to add any "apt" dependencies to the package.
-### Those deb packages will be installed as dependencies of this package.
-### If you're not using this helper:
-###		- Remove the section "REMOVE DEPENDENCIES" in the remove script
-###		- Remove the variable "pkg_dependencies" in _common.sh
-###		- As well as the section "REINSTALL DEPENDENCIES" in the restore script
-###		- And the section "UPGRADE DEPENDENCIES" in the upgrade script
-
 ynh_install_app_dependencies $pkg_dependencies
 
-#=================================================
-# INSTALL NODEJS
-#=================================================
-ynh_script_progression --message="Installing NodeJS..." --weight=30
-
 ynh_install_nodejs --nodejs_version=$nodejs_version
 
 #=================================================
@@ -104,20 +91,31 @@ ynh_script_progression --message="Creating a MySQL database..." --weight=2
 
 db_name=$(ynh_sanitize_dbid --db_name=$app)
 db_user=$db_name
-db_pwd= # Will be set by facilmap_create_db
 ynh_app_setting_set --app=$app --key=db_name --value=$db_name
-facilmap_create_db
+ynh_mysql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
+echo "ALTER DATABASE $db_name CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci" | ynh_mysql_connect_as --user=$db_user --password=$db_pwd --database=$db_name
+
+#=================================================
+# CREATE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Configuring system user..." --weight=1
+
+ynh_system_user_create --username=$app --home_dir="$final_path"
 
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
-#ynh_script_progression --message="Setting up source files..." --weight=100
+ynh_script_progression --message="Setting up source files..." --weight=100
 
 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"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -126,14 +124,6 @@ ynh_script_progression --message="Configuring NGINX web server..." --weight=2
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
-#=================================================
-# CREATE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Configuring system user..." --weight=1
-
-# Create a system user
-facilmap_create_user
-
 #=================================================
 # SPECIFIC SETUP
 #=================================================
@@ -141,7 +131,12 @@ facilmap_create_user
 #=================================================
 ynh_script_progression --message="Building node dependencies..." --weight=200
 
-facilmap_install_app
+mkdir -p $final_path
+chown -R $app $final_path
+
+pushd $final_path
+	ynh_exec_as $app "$ynh_node_load_PATH" $ynh_npm install --prefix "$final_path" -g facilmap-server@"$facilmap_version"
+popd
 
 #=================================================
 # SETUP SYSTEMD
@@ -149,24 +144,15 @@ facilmap_install_app
 ynh_script_progression --message="Configuring a systemd service..." --weight=2
 
 # Create a dedicated systemd config
-ynh_add_systemd_config --others_var="ynh_node_load_PATH"
+ynh_add_systemd_config
 
 #=================================================
 # ADD A CONFIGURATION
 #=================================================
 ynh_script_progression --message="Adding configuration..." --weight=2
 
-facilmap_add_config
-
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-ynh_script_progression --message="Setting app files permissions.." --weight=2
-
-# Set permissions on app files
-facilmap_set_permissions
+mkdir -p $final_path/etc
+ynh_add_config --template="../conf/config.env" --destination="$final_path/etc/facilmap.env"
 
 #=================================================
 # SETUP LOGROTATE
@@ -199,22 +185,9 @@ ynh_script_progression --message="Configuring app permissions..." --weight=2
 # 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
 
-# ### N.B. : the following extra permissions only make sense if your app
-# ### does have for example an admin interface or an api.
-#
-# # Only the admin can access the admin panel of the app (if the app has an admin panel)
-# ynh_permission_create --permission="admin" --url="/admin" --allowed=$admin
-#
-# # Everyone can access to the api part
-# # We don't want to display the tile in the sso so we put --show_tile="false"
-# # And we don't want that the YunoHost Admin can remove visitors group to this permission, so we put --protected="true"
-# ynh_permission_create --permission="api" --url "/api" --allowed="visitors" --show_tile="false" --protected="true"
-
 #=================================================
 # RELOAD NGINX
 #=================================================