diff --git a/manifest.json b/manifest.json
index bb22c9d..0419d0f 100644
--- a/manifest.json
+++ b/manifest.json
@@ -10,8 +10,8 @@
         "fr": "Créer une redirection ou un proxy vers un autre emplacement"
     },
     "version": "1.0.0~ynh2",
-    "url": "https://github.com/YunoHost-Apps/redirect_ynh",
     "license": "AGPL-3.0-or-later",
+    "url": "https://github.com/YunoHost-Apps/redirect_ynh",
     "maintainer": {
         "name": "opi",
         "email": "opi@zeropi.net"
@@ -43,6 +43,7 @@
             },
             {
                 "name": "redirect_path",
+                "type": "string",
                 "ask": {
                     "en": "Redirect destination path",
                     "fr": "Emplacement de destination"
@@ -57,6 +58,10 @@
                     "en": "Is it a public redirect?",
                     "fr": "Est-ce une redirection publique ?"
                 },
+                "help": {
+                    "en": "A private redirection will only be effective for logged-in users.",
+                    "fr": "Une redirection privée ne fonctionnera que pour les utilisateurs identifiés."
+                },
                 "default": false
             },
             {
diff --git a/scripts/backup b/scripts/backup
index ddb8155..73bca48 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -38,8 +38,8 @@ ynh_abort_if_errors
 app=$YNH_APP_INSTANCE_NAME
 
 # Retrieve arguments
-domain=$(yunohost app setting $app domain)
+domain=$(ynh_app_setting_get $app domain)
 
 # Copy the conf files
 mkdir -p ./conf
-cp -a "/etc/nginx/conf.d/${domain}.d/${app}.conf" ./conf/nginx.conf
\ No newline at end of file
+cp -a "/etc/nginx/conf.d/${domain}.d/${app}.conf" ./conf/nginx.conf
diff --git a/scripts/install b/scripts/install
index dc53e28..ebf4b77 100644
--- a/scripts/install
+++ b/scripts/install
@@ -34,43 +34,39 @@ app=$YNH_APP_INSTANCE_NAME
 
 # Retrieve arguments
 domain=$YNH_APP_ARG_DOMAIN
-path=$YNH_APP_ARG_PATH
+path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 redirect_type=$YNH_APP_ARG_REDIRECT_TYPE
 redirect_path=$YNH_APP_ARG_REDIRECT_PATH
 
-# Remove trailing slash to path
-path=${path%/}
-#force location to be / or /foo
-location=${path:-/}
-
 # Check domain/path availability
-yunohost app checkurl $domain$path -a $app \
-    || ynh_die "Path not available: $domain$path"
+ynh_webpath_register $app $domain $path_url
 
 # Validate redirect path
 url_regex='(https?|ftp|file)://[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]'
-[[ ! $redirect_path =~ $url_regex ]] && ynh_die \
-"Invalid destination: $redirect_path" 1
+[[ ! $redirect_path =~ $url_regex ]] && ynh_die "Invalid destination: $redirect_path" 1
 
 # Save extra settings
-yunohost app setting $app is_public -v "$is_public"
-yunohost app setting $app redirect_type -v "$redirect_type"
-yunohost app setting $app redirect_path -v "$redirect_path"
+ynh_app_setting_set $app is_public "$is_public"
+ynh_app_setting_set $app redirect_type "$redirect_type"
+ynh_app_setting_set $app redirect_path "$redirect_path"
 
 # Nginx configuration
-sed -i "s@YNH_LOCATION@$location@g" ../conf/nginx-*.conf
+for FILE in $(ls ../conf/nginx-*.conf)
+do
+    ynh_replace_string "YNH_LOCATION" "$path_url" $FILE
+done
 if [ "$redirect_type" = "visible_302" ];
 then
-    sed -i "s@YNH_REDIRECT_PATH@$redirect_path@g" ../conf/nginx-visible-302.conf
+    ynh_replace_string "YNH_REDIRECT_PATH" "$redirect_path" ../conf/nginx-visible-302.conf
     cp ../conf/nginx-visible-302.conf /etc/nginx/conf.d/$domain.d/$app.conf
 elif [ "$redirect_type" = "visible_301" ];
 then
-    sed -i "s@YNH_REDIRECT_PATH@$redirect_path@g" ../conf/nginx-visible-301.conf
+    ynh_replace_string "YNH_REDIRECT_PATH" "$redirect_path" ../conf/nginx-visible-301.conf
     cp ../conf/nginx-visible-301.conf /etc/nginx/conf.d/$domain.d/$app.conf
 elif [ "$redirect_type" = "proxy" ];
 then
-    sed -i "s@YNH_REDIRECT_PATH@$redirect_path@g" ../conf/nginx-proxy.conf
+    ynh_replace_string "YNH_REDIRECT_PATH" "$redirect_path" ../conf/nginx-proxy.conf
     cp ../conf/nginx-proxy.conf /etc/nginx/conf.d/$domain.d/$app.conf
 fi
 
@@ -78,12 +74,12 @@ fi
 # SETUP SSOWAT
 #=================================================
 
-if [[ "$is_public" -eq 0 ]]
+if [ $is_public -eq 0 ]
 then	# Remove the public access
 	ynh_app_setting_delete "$app" skipped_uris
 fi
 # Make app public if necessary
-if [[ "$is_public" -eq 1 ]]
+if [ $is_public -eq 1 ]
 then
 	# unprotected_uris allows SSO credentials to be passed anyway.
 	ynh_app_setting_set "$app" unprotected_uris "/"
@@ -92,4 +88,3 @@ fi
 
 # Reload Nginx and regenerate SSOwat conf
 service nginx reload
-yunohost app ssowatconf
diff --git a/scripts/remove b/scripts/remove
index 32159db..0f596fd 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -26,11 +26,10 @@ source /usr/share/yunohost/helpers
 app=$YNH_APP_INSTANCE_NAME
 
 # Retrieve arguments
-domain=$(yunohost app setting $app domain)
+domain=$(ynh_app_setting_get $app domain)
 
 # Remove configuration files
-rm -f /etc/nginx/conf.d/$domain.d/$app.conf
+ynh_secure_remove /etc/nginx/conf.d/$domain.d/$app.conf
 
 # Restart services
 service nginx reload
-yunohost app ssowatconf
diff --git a/scripts/restore b/scripts/restore
index 1a4b8e8..58d11c4 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -39,28 +39,18 @@ app=$YNH_APP_INSTANCE_NAME
 
 # Retrieve arguments
 domain=$(ynh_app_setting_get "$app" domain)
-path=$(ynh_app_setting_get "$app" path)
+path_url=$(ynh_app_setting_get "$app" path)
 is_public=$(ynh_app_setting_get "$app" is_public)
 redirect_type=$(ynh_app_setting_get "$app" redirect_type)
 redirect_path=$(ynh_app_setting_get "$app" redirect_path)
 
-# Remove trailing slash to path
-path=${path%/}
-
-# Check domain/path availability
-yunohost app checkurl $domain$path -a $app \
-  || die "The path ${domain}${path} is not available for app installation."
-
 # Validate redirect path
 url_regex='(https?|ftp|file)://[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]'
-[[ ! $redirect_path =~ $url_regex ]] && ynh_die \
-"Invalid destination: $redirect_path" 1
+[[ ! $redirect_path =~ $url_regex ]] && ynh_die "Invalid destination: $redirect_path" 1
 
 # Check configuration files
 NGINX_CONF="/etc/nginx/conf.d/${domain}.d/${app}.conf"
-[[ -f $NGINX_CONF ]] && die \
-"The NGINX configuration already exists at '${NGINX_CONF}'.
- You should safely delete it before restoring this app."
+[[ -f $NGINX_CONF ]] && ynh_die "The NGINX configuration already exists at '${NGINX_CONF}'. You should safely delete it before restoring this app."
 
 # Restore configuration files
 cp -a ./conf/nginx.conf "$NGINX_CONF"
@@ -69,12 +59,12 @@ cp -a ./conf/nginx.conf "$NGINX_CONF"
 # SETUP SSOWAT
 #=================================================
 
-if [[ "$is_public" -eq 0 ]]
+if [ "$is_public" -eq 0 ]
 then	# Remove the public access
 	ynh_app_setting_delete "$app" skipped_uris
 fi
 # Make app public if necessary
-if [[ "$is_public" -eq 1 ]]
+if [ "$is_public" -eq 1 ]
 then
 	# unprotected_uris allows SSO credentials to be passed anyway.
 	ynh_app_setting_set "$app" unprotected_uris "/"
@@ -82,4 +72,3 @@ fi
 
 # Reload Nginx and regenerate SSOwat conf
 service nginx reload
-yunohost app ssowatconf
diff --git a/scripts/upgrade b/scripts/upgrade
index 027b27c..a9c3915 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -31,7 +31,7 @@ app=$YNH_APP_INSTANCE_NAME
 
 # Retrieve arguments
 domain=$(ynh_app_setting_get "$app" domain)
-path=$(ynh_app_setting_get "$app" path)
+path_url=$(ynh_app_setting_get "$app" path)
 is_public=$(ynh_app_setting_get "$app" is_public)
 redirect_type=$(ynh_app_setting_get "$app" redirect_type)
 redirect_path=$(ynh_app_setting_get "$app" redirect_path)
@@ -69,33 +69,26 @@ ynh_clean_setup () {
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
-# Remove trailing slash to path
-path=${path%/}
-#force location to be / or /foo
-location=${path:-/}
-
-# Check domain/path availability
-yunohost app checkurl $domain$path -a $app \
-    || ynh_die "Path not available: $domain$path"
-
 # Validate redirect path
 url_regex='(https?|ftp|file)://[-A-Za-z0-9\+&@#/%?=~_|!:,.;]*[-A-Za-z0-9\+&@#/%=~_|]'
-[[ ! $redirect_path =~ $url_regex ]] && ynh_die \
-"Invalid destination: $redirect_path" 1
+[[ ! $redirect_path =~ $url_regex ]] && ynh_die "Invalid destination: $redirect_path" 1
 
 # Nginx configuration
-sed -i "s@YNH_LOCATION@$location@g" ../conf/nginx-*.conf
+for FILE in $(ls ../conf/nginx-*.conf)
+do
+    ynh_replace_string "YNH_LOCATION" "$path_url" $FILE
+done
 if [ "$redirect_type" = "visible_302" ];
 then
-    sed -i "s@YNH_REDIRECT_PATH@$redirect_path@g" ../conf/nginx-visible-302.conf
+    ynh_replace_string "YNH_REDIRECT_PATH" "$redirect_path" ../conf/nginx-visible-302.conf
     cp ../conf/nginx-visible-302.conf /etc/nginx/conf.d/$domain.d/$app.conf
 elif [ "$redirect_type" = "visible_301" ];
 then
-    sed -i "s@YNH_REDIRECT_PATH@$redirect_path@g" ../conf/nginx-visible-301.conf
+    ynh_replace_string "YNH_REDIRECT_PATH" "$redirect_path" ../conf/nginx-visible-301.conf
     cp ../conf/nginx-visible-301.conf /etc/nginx/conf.d/$domain.d/$app.conf
 elif [ "$redirect_type" = "proxy" ];
 then
-    sed -i "s@YNH_REDIRECT_PATH@$redirect_path@g" ../conf/nginx-proxy.conf
+    ynh_replace_string "YNH_REDIRECT_PATH" "$redirect_path" ../conf/nginx-proxy.conf
     cp ../conf/nginx-proxy.conf /etc/nginx/conf.d/$domain.d/$app.conf
 fi
 
@@ -103,12 +96,12 @@ fi
 # SETUP SSOWAT
 #=================================================
 
-if [[ "$is_public" -eq 0 ]]
+if [ "$is_public" -eq 0 ]
 then	# Remove the public access
 	ynh_app_setting_delete "$app" skipped_uris
 fi
 # Make app public if necessary
-if [[ "$is_public" -eq 1 ]]
+if [ "$is_public" -eq 1 ]
 then
 	# unprotected_uris allows SSO credentials to be passed anyway.
 	ynh_app_setting_set "$app" unprotected_uris -v "/"
@@ -116,4 +109,3 @@ fi
 
 # Reload Nginx and regenerate SSOwat conf
 service nginx reload
-yunohost app ssowatconf