diff --git a/scripts/backup b/scripts/backup
index 3e9328e..886fc15 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -6,7 +6,6 @@
 # IMPORT GENERIC HELPERS
 #=================================================
 
-#Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
 source ../settings/scripts/_common.sh
 source /usr/share/yunohost/helpers
 
@@ -14,10 +13,6 @@ source /usr/share/yunohost/helpers
 # MANAGE SCRIPT FAILURE
 #=================================================
 
-ynh_clean_setup () {
-	### Remove this function if there's nothing to clean before calling the remove script.
-	true
-}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
@@ -30,7 +25,6 @@ app=$YNH_APP_INSTANCE_NAME
 
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 domain=$(ynh_app_setting_get --app=$app --key=domain)
-db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
 #=================================================
@@ -38,11 +32,6 @@ phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 #=================================================
 ynh_print_info --message="Declaring files to be backed up..."
 
-### N.B. : the following 'ynh_backup' calls are only a *declaration* of what needs
-### to be backuped and not an actual copy of any file. The actual backup that
-### creates and fill the archive with the files happens in the core after this
-### script is called. Hence ynh_backups calls takes basically 0 seconds to run.
-
 #=================================================
 # BACKUP THE APP MAIN DIR
 #=================================================
@@ -61,45 +50,6 @@ ynh_backup --src_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
 ynh_backup --src_path="/etc/php/$phpversion/fpm/pool.d/$app.conf"
 
-#=================================================
-# BACKUP FAIL2BAN CONFIGURATION
-#=================================================
-
-ynh_backup --src_path="/etc/fail2ban/jail.d/$app.conf"
-ynh_backup --src_path="/etc/fail2ban/filter.d/$app.conf"
-
-#=================================================
-# SPECIFIC BACKUP
-#=================================================
-# BACKUP LOGROTATE
-#=================================================
-
-ynh_backup --src_path="/etc/logrotate.d/$app"
-
-#=================================================
-# BACKUP SYSTEMD
-#=================================================
-
-ynh_backup --src_path="/etc/systemd/system/$app.service"
-
-#=================================================
-# BACKUP VARIOUS FILES
-#=================================================
-
-ynh_backup --src_path="/etc/cron.d/$app"
-
-ynh_backup --src_path="/etc/$app/"
-
-#=================================================
-# BACKUP THE MYSQL DATABASE
-#=================================================
-ynh_print_info --message="Backing up the MySQL database..."
-
-### (However, things like mysql dumps *do* take some time to run, though the
-### copy of the generated dump to the archive still happens later)
-
-ynh_mysql_dump_db --database="$db_name" > db.sql
-
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/change_url b/scripts/change_url
index 3f21bc8..2a179bf 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -29,11 +29,6 @@ ynh_script_progression --message="Loading installation settings..." --time --wei
 # Needed for helper "ynh_add_nginx_config"
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 
-# Add settings here as needed by your application
-#db_name=$(ynh_app_setting_get --app=$app --key=db_name)
-#db_user=$db_name
-#db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
-
 #=================================================
 # BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
 #=================================================
@@ -105,12 +100,6 @@ then
 	ynh_store_file_checksum --file="/etc/nginx/conf.d/$new_domain.d/$app.conf"
 fi
 
-#=================================================
-# SPECIFIC MODIFICATIONS
-#=================================================
-# ...
-#=================================================
-
 #=================================================
 # GENERIC FINALISATION
 #=================================================
diff --git a/scripts/install b/scripts/install
index f9d9026..9b3dd74 100644
--- a/scripts/install
+++ b/scripts/install
@@ -83,37 +83,12 @@ ynh_script_progression --message="Configuring PHP-FPM..." --weight=2
 ynh_add_fpm_config --phpversion=$YNH_PHP_VERSION
 phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
-#=================================================
-# SPECIFIC SETUP
-#=================================================
-# CONFIGURE TTRSS
-#=================================================
-# ynh_script_progression --message="Configuring ttrss..." --weight=1
-
-# cp ../conf/config.php "$final_path/config.php"
-
-# # Change variables in ttrss configuration
-# ynh_replace_string --match_string="__DBNAME__" --replace_string="$db_name" --target_file="$final_path/config.php"
-# ynh_replace_string --match_string="__DBPWD__" --replace_string="$db_pwd" --target_file="$final_path/config.php"
-# ynh_replace_string --match_string="__DOMAINPATH__" --replace_string="https://$domain$path_url" --target_file="$final_path/config.php"
-
-# # Recalculate and store the config file checksum into the app settings
-# ynh_store_file_checksum --file="$final_path/config.php"
-
-#=================================================
-# SETUP SYSTEMD
-#=================================================
-ynh_script_progression --message="Configuring a systemd service..." --weight=2
-
-ynh_add_systemd_config
-
 #=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
 
 # Set permissions to app files
 chown -R root: $final_path
-chown -R $app $final_path/{cache,feed-icons,lock}
 
 #=================================================
 # START TTRSS IN BACKGROUND
@@ -127,7 +102,13 @@ ynh_systemd_action --service_name=$app --action=start
 #=================================================
 ynh_script_progression --message="Configuring SSOwat..." --weight=1
 
-ynh_app_setting_set --app=$app --key=skipped_uris --value="/public.php,/api,/opml.php?op=publish"
+# Make app public if necessary or protect it
+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
 
 #=================================================
 # RELOAD NGINX
diff --git a/scripts/restore b/scripts/restore
index dbf42e8..cab0d9b 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -14,10 +14,6 @@ source /usr/share/yunohost/helpers
 # MANAGE SCRIPT FAILURE
 #=================================================
 
-ynh_clean_setup () {
-	#### Remove this function if there's nothing to clean before calling the remove script.
-	true
-}
 # Exit if an error occurs during the execution of the script
 ynh_abort_if_errors
 
diff --git a/scripts/upgrade b/scripts/upgrade
index 2f4e0e0..f46f476 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -127,18 +127,6 @@ ynh_script_progression --message="Integrating service in YunoHost..." --time --w
 
 yunohost service add $app --description "A short description of the app" --log "/var/log/$app/$app.log"
 
-#=================================================
-# SETUP SSOWAT
-#=================================================
-ynh_script_progression --message="Upgrading SSOwat configuration..." --time --weight=1
-
-# Make app public if necessary
-if [ $is_public -eq 1 ]
-then
-	# unprotected_uris allows SSO credentials to be passed anyway
-	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
-fi
-
 #=================================================
 # RELOAD NGINX
 #=================================================