diff --git a/conf/example-custom-nginx-config.conf b/conf/example-custom-nginx-config.conf
new file mode 100644
index 0000000..0d72ff4
--- /dev/null
+++ b/conf/example-custom-nginx-config.conf
@@ -0,0 +1,2 @@
+# Common parameter to increase upload size limit in conjunction with dedicated PHP-FPM file
+#client_max_body_size 1G;
\ No newline at end of file
diff --git a/conf/nginx-php.conf b/conf/nginx-php.conf
new file mode 100644
index 0000000..f68f202
--- /dev/null
+++ b/conf/nginx-php.conf
@@ -0,0 +1,10 @@
+# Execute and serve PHP files
+location ~ [^/]\.php(/|$) {
+    fastcgi_split_path_info ^(.+?\.php)(/.*)$;
+    fastcgi_pass unix:/var/run/php/php__PHPVERSION__-fpm-__NAME__.sock;
+    fastcgi_index index.php;
+    include fastcgi_params;
+    fastcgi_param REMOTE_USER $remote_user;
+    fastcgi_param PATH_INFO $fastcgi_path_info;
+    fastcgi_param SCRIPT_FILENAME $request_filename;
+}
diff --git a/conf/nginx_no_php.conf b/conf/nginx.conf
similarity index 84%
rename from conf/nginx_no_php.conf
rename to conf/nginx.conf
index a80930c..9f696ae 100644
--- a/conf/nginx_no_php.conf
+++ b/conf/nginx.conf
@@ -4,9 +4,6 @@ location __PATH__/ {
     # Path to source
     alias __INSTALL_DIR__/www/;
 
-    # Common parameter to increase upload size limit in conjunction with dedicated PHP-FPM file
-    client_max_body_size 500M;
-
     # Default indexes and catch-all
     index index.html index.php;
     try_files $uri $uri/ __PATH__/index.php?$args;
@@ -28,6 +25,8 @@ location __PATH__/ {
         deny all;
     }
 
+    include conf.d/__DOMAIN__.d/__APP__.d/*.conf;
+
     # Include SSOWAT user panel.
     include conf.d/yunohost_panel.conf.inc;
 }
diff --git a/conf/nginx_with_php.conf b/conf/nginx_with_php.conf
deleted file mode 100644
index 7f5752e..0000000
--- a/conf/nginx_with_php.conf
+++ /dev/null
@@ -1,44 +0,0 @@
-#sub_path_only rewrite ^__PATH__$ __PATH__/ permanent;
-location __PATH__/ {
-
-    # Path to source
-    alias __INSTALL_DIR__/www/;
-
-    # Common parameter to increase upload size limit in conjunction with dedicated PHP-FPM file
-    client_max_body_size 500M;
-
-    # Default indexes and catch-all
-    index index.html index.php;
-    try_files $uri $uri/ __PATH__/index.php?$args;
-
-    # Prevent useless logs
-    location = __PATH__/favicon.ico {
-        log_not_found off;
-        access_log off;
-    }
-
-    location = __PATH__/robots.txt {
-        allow all;
-        log_not_found off;
-        access_log off;
-    }
-
-    # Deny access to hidden files and directories
-    location ~ ^__PATH__/(.+/|)\.(?!well-known\/) {
-        deny all;
-    }
-
-    # Execute and serve PHP files
-    location ~ [^/]\.php(/|$) {
-        fastcgi_split_path_info ^(.+?\.php)(/.*)$;
-        fastcgi_pass unix:/var/run/php/php__PHPVERSION__-fpm-__NAME__.sock;
-        fastcgi_index index.php;
-        include fastcgi_params;
-        fastcgi_param REMOTE_USER $remote_user;
-        fastcgi_param PATH_INFO $fastcgi_path_info;
-        fastcgi_param SCRIPT_FILENAME $request_filename;
-    }
-
-    # Include SSOWAT user panel.
-    include conf.d/yunohost_panel.conf.inc;
-}
diff --git a/doc/DESCRIPTION.md b/doc/DESCRIPTION.md
index de48a9d..f24ccce 100644
--- a/doc/DESCRIPTION.md
+++ b/doc/DESCRIPTION.md
@@ -5,3 +5,5 @@ It can also create a MySQL database - which will be backed up and restored with
 PHP-FPM version can also be selected among `none`, `7.4`, `8.0`, `8.1` and `8.2`.
 
 **Once installed, go to the chosen URL to know the user, domain and port you will have to use for the SFTP access.** The password is one you chosen during the installation. Under the Web directory, you will see a `www` folder which contains the public files served by this app. You can put all the files of your custom Web application inside.
+
+If you want to add customized nginx configuration, put it in `/etc/nginx/conf.d/YOUR_DOMAIN.d/my_webapp.d/WHATEVER_NAME.conf` (ensure that the file has the `.conf` extension, and change `my_webapp.d` to `my_webapp__xx.d` if you want to change the configuration of the second or more installation of my_webapp).
diff --git a/doc/DESCRIPTION_fr.md b/doc/DESCRIPTION_fr.md
index 2bf7f20..956bd4a 100644
--- a/doc/DESCRIPTION_fr.md
+++ b/doc/DESCRIPTION_fr.md
@@ -5,3 +5,5 @@ Elle peut également créer une base de données MySQL - qui sera sauvegardée e
 La version de PHP-FPM peut aussi être choisie, parmi `none`, `7.4`, `8.0`, `8.1` et `8.2`.
 
 **Une fois installé, rendez-vous sur l'URL choisie pour connaître l'utilisateur, le domaine et le port que vous devrez utiliser pour l'accès SFTP.** Le mot de passe est celui que vous avez choisi lors de l'installation. Sous le répertoire Web, vous verrez un dossier `www` qui contient les fichiers publics servis par cette application. Vous pouvez mettre tous les fichiers de votre application Web personnalisée à l'intérieur.
+
+Si vous voulez ajouter une configuration personnalisée de nginx, mettez-la dans `/etc/nginx/conf.d/votre_domaine.d/my_webapp.d/WHATEVER_NAME.conf` (assurez-vous que le fichier a l'extension `.conf`, et changez `my_webapp.d` en `my_webapp__xx.d` si vous voulez changer la configuration de la deuxième installation ou plus de my_webapp).
diff --git a/scripts/backup b/scripts/backup
index 2d2ea7a..40b562e 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -34,6 +34,7 @@ ynh_backup --src_path="$install_dir"
 #=================================================
 
 ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.d"
 
 #=================================================
 # BACKUP THE PHP-FPM CONFIGURATION
diff --git a/scripts/change_url b/scripts/change_url
index a430715..4433872 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -9,6 +9,21 @@
 source _common.sh
 source /usr/share/yunohost/helpers
 
+#=================================================
+# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
+#=================================================
+ynh_script_progression --message="Backing up the app before changing its URL (may take a while)..." --weight=5
+
+# Backup the current version of the app
+ynh_clean_setup () {
+	# 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"
+	ynh_secure_remove --file="/etc/nginx/conf.d/$new_domain.d/$app.d"
+
+	# restore it if the upgrade fails
+	ynh_restore_upgradebackup
+}
+
 #=================================================
 # ACTIVATE MAINTENANCE MODE
 #=================================================
@@ -25,14 +40,7 @@ ynh_maintenance_mode_ON
 ynh_script_progression --message="Updating NGINX web server configuration..." --weight=2
 
 nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
-
-# Prepare nginx.conf
-if [ $phpversion != "none" ]
-then
-    cp ../conf/nginx{_with_php,}.conf
-else
-    cp ../conf/nginx{_no_php,}.conf
-fi
+nginx_extra_conf_dir=/etc/nginx/conf.d/$old_domain.d/$app.d
 
 # Change the path in the NGINX config file
 if [ $change_path -eq 1 ]
@@ -53,10 +61,19 @@ 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/$app.conf
+	ynh_delete_file_checksum --file="$nginx_extra_conf_dir/php.conf"
+
+	path_url="$new_path"
+	domain="$old_domain"
+	ynh_remove_nginx_config
+
+	domain="$new_domain"
+	ynh_add_nginx_config
+
+	mv $nginx_extra_conf_dir /etc/nginx/conf.d/$new_domain.d/$app.d
 
 	# Store file checksum for the new config file location
-	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
+	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.d/php.conf"
 fi
 
 #=================================================
diff --git a/scripts/config b/scripts/config
index 3f3d88c..7763f7c 100644
--- a/scripts/config
+++ b/scripts/config
@@ -119,11 +119,14 @@ ynh_app_config_apply() {
         # ^ ynh_add_config replaces __PHPVERSION__ by __PHP_YNH_VERSION__...
         ynh_app_setting_set --app=$app --key=phpversion --value="$phpversion"
 
+        nginx_extra_conf_dir="/etc/nginx/conf.d/$domain.d/$app.d"
+        mkdir -p "$nginx_extra_conf_dir"
         if [ "$phpversion" == "none" ]
         then
-            cp ../conf/nginx{_no_php,}.conf
+            ynh_delete_file_checksum --file="$nginx_extra_conf_dir/php.conf"
+            ynh_secure_remove --file="$nginx_extra_conf_dir/php.conf"
         else
-            cp ../conf/nginx{_with_php,}.conf
+            ynh_add_config --template="nginx-php.conf" --destination="$nginx_extra_conf_dir/php.conf"
             ynh_install_app_dependencies "php${phpversion}-fpm"
             ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint --phpversion=$phpversion
             # ^ the helper takes care of ynh_app_setting_set the phpversion
diff --git a/scripts/install b/scripts/install
index ed2d9f2..8280d3d 100644
--- a/scripts/install
+++ b/scripts/install
@@ -58,17 +58,19 @@ fi
 #=================================================
 ynh_script_progression --message="Configuring NGINX web server..." --weight=2
 
-# Prepare nginx.conf
+nginx_extra_conf_dir="/etc/nginx/conf.d/$domain.d/$app.d"
+mkdir -p "$nginx_extra_conf_dir"
+
+# Prepare nginx extra conf
 if [ $phpversion != "none" ]
 then
-    cp ../conf/nginx{_with_php,}.conf
+    ynh_add_config --template="nginx-php.conf" --destination="$nginx_extra_conf_dir/php.conf"
     YNH_PHP_VERSION="$phpversion"
-else
-    cp ../conf/nginx{_no_php,}.conf
 fi
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
+ynh_add_config --template="example-custom-nginx-config.conf" --destination="$nginx_extra_conf_dir/sample.conf"
 
 #=================================================
 # CREATE DEDICATED USER
diff --git a/scripts/remove b/scripts/remove
index a037124..962cf23 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -39,6 +39,7 @@ ynh_script_progression --message="Removing NGINX web server configuration..." --
 
 # Remove the dedicated NGINX config
 ynh_remove_nginx_config
+ynh_secure_remove --file="/etc/nginx/conf.d/$domain.d/$app.d"
 
 #=================================================
 # REMOVE PHP-FPM CONFIGURATION
diff --git a/scripts/restore b/scripts/restore
index 3759d0a..68e97f0 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -23,6 +23,7 @@ password=$(ynh_app_setting_get --app=$app --key=password)
 #=================================================
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
+ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.d/"
 
 #=================================================
 # RESTORE THE MYSQL DATABASE
diff --git a/scripts/upgrade b/scripts/upgrade
index a8d9a3e..f517cc3 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -79,16 +79,20 @@ ynh_maintenance_mode_ON
 ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=2
 
 # Prepare nginx.conf
+nginx_extra_conf_dir="/etc/nginx/conf.d/$domain.d/$app.d"
+
+mkdir -p "$nginx_extra_conf_dir"
+
+# Prepare nginx extra conf
 if [ $phpversion != "none" ]
 then
-    cp ../conf/nginx{_with_php,}.conf
+    ynh_add_config --template="nginx-php.conf" --destination="$nginx_extra_conf_dir/php.conf"
     YNH_PHP_VERSION="$phpversion"
-else
-    cp ../conf/nginx{_no_php,}.conf
 fi
 
 # Create a dedicated NGINX config
 ynh_add_nginx_config
+ynh_add_config --template="example-custom-nginx-config.conf" --destination="$nginx_extra_conf_dir/sample.conf"
 
 #=================================================
 # CREATE DEDICATED USER