diff --git a/scripts/_common.sh b/scripts/_common.sh
new file mode 100644
index 0000000..8ae77b5
--- /dev/null
+++ b/scripts/_common.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+
+# =============================================================================
+#                     YUNOHOST 2.7 FORTHCOMING HELPERS
+# =============================================================================
+
+# Create a dedicated nginx config
+#
+# usage: ynh_add_nginx_config
+ynh_add_nginx_config () {
+	finalnginxconf="/etc/nginx/conf.d/$domain.d/$app.conf"
+	ynh_backup_if_checksum_is_different "$finalnginxconf" 1
+	sudo cp ../conf/nginx.conf "$finalnginxconf"
+
+	# To avoid a break by set -u, use a void substitution ${var:-}. If the variable is not set, it's simply set with an empty variable.
+	# Substitute in a nginx config file only if the variable is not empty
+	if test -n "${path_url:-}"; then
+		ynh_replace_string "__PATH__" "$path_url" "$finalnginxconf"
+	fi
+	if test -n "${domain:-}"; then
+		ynh_replace_string "__DOMAIN__" "$domain" "$finalnginxconf"
+	fi
+	if test -n "${port:-}"; then
+		ynh_replace_string "__PORT__" "$port" "$finalnginxconf"
+	fi
+	if test -n "${app:-}"; then
+		ynh_replace_string "__NAME__" "$app" "$finalnginxconf"
+	fi
+	if test -n "${final_path:-}"; then
+		ynh_replace_string "__FINALPATH__" "$final_path" "$finalnginxconf"
+	fi
+	ynh_store_checksum_config "$finalnginxconf"
+
+	sudo systemctl reload nginx
+}
+
+# Remove the dedicated nginx config
+#
+# usage: ynh_remove_nginx_config
+ynh_remove_nginx_config () {
+	ynh_secure_remove "/etc/nginx/conf.d/$domain.d/$app.conf"
+	sudo systemctl reload nginx
+}
+
+# Create a dedicated php-fpm config
+#
+# usage: ynh_add_fpm_config
+ynh_add_fpm_config () {
+	finalphpconf="/etc/php5/fpm/pool.d/$app.conf"
+	ynh_backup_if_checksum_is_different "$finalphpconf" 1
+	sudo cp ../conf/php-fpm.conf "$finalphpconf"
+	ynh_replace_string "__NAMETOCHANGE__" "$app" "$finalphpconf"
+	ynh_replace_string "__FINALPATH__" "$final_path" "$finalphpconf"
+	ynh_replace_string "__USER__" "$app" "$finalphpconf"
+	sudo chown root: "$finalphpconf"
+	ynh_store_file_checksum "$finalphpconf"
+
+	if [ -e "../conf/php-fpm.ini" ]
+	then
+		finalphpini="/etc/php5/fpm/conf.d/20-$app.ini"
+		ynh_compare_checksum_config "$finalphpini" 1
+		sudo cp ../conf/php-fpm.ini "$finalphpini"
+		sudo chown root: "$finalphpini"
+		ynh_store_checksum_config "$finalphpini"
+	fi
+
+	sudo systemctl reload php5-fpm
+}
+
+# Remove the dedicated php-fpm config
+#
+# usage: ynh_remove_fpm_config
+ynh_remove_fpm_config () {
+	ynh_secure_remove "/etc/php5/fpm/pool.d/$app.conf"
+	ynh_secure_remove "/etc/php5/fpm/conf.d/20-$app.ini" 2>&1
+	sudo systemctl reload php5-fpm
+}
+
+# Create a dedicated systemd config
+#
+# usage: ynh_add_systemd_config
+ynh_add_systemd_config () {
+	finalsystemdconf="/etc/systemd/system/$app.service"
+	ynh_compare_checksum_config "$finalsystemdconf" 1
+	sudo cp ../conf/systemd.service "$finalsystemdconf"
+
+	# To avoid a break by set -u, use a void substitution ${var:-}. If the variable is not set, it's simply set with an empty variable.
+	# Substitute in a nginx config file only if the variable is not empty
+	if test -n "${final_path:-}"; then
+		ynh_replace_string "__FINALPATH__" "$final_path" "$finalsystemdconf"
+	fi
+	if test -n "${app:-}"; then
+		ynh_replace_string "__APP__" "$app" "$finalsystemdconf"
+	fi
+	ynh_store_checksum_config "$finalsystemdconf"
+
+	sudo chown root: "$finalsystemdconf"
+	sudo systemctl enable $app
+	sudo systemctl daemon-reload
+}
+
+# Remove the dedicated systemd config
+#
+# usage: ynh_remove_systemd_config
+ynh_remove_systemd_config () {
+	finalsystemdconf="/etc/systemd/system/$app.service"
+	if [ -e "$finalsystemdconf" ]; then
+		sudo systemctl stop $app
+		sudo systemctl disable $app
+		ynh_secure_remove "$finalsystemdconf"
+	fi
+}
diff --git a/scripts/change_url b/scripts/change_url
index e036ed0..3984838 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -6,6 +6,7 @@ source /usr/share/yunohost/helpers
 # Import common cmd
 source ./_common.sh
 
+app=$YNH_APP_INSTANCE_NAME
 # Retrive arguments
 old_domain=$YNH_APP_OLD_DOMAIN
 old_path=$(ynh_normalize_url_path $YNH_APP_OLD_PATH)