diff --git a/scripts/_common.sh b/scripts/_common.sh
index 6fe8868..eaf6cdd 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -8,14 +8,3 @@
 YNH_PHP_VERSION="7.3"
 extra_pkg_dependencies="php$YNH_PHP_VERSION-intl php$YNH_PHP_VERSION-curl php$YNH_PHP_VERSION-mbstring"
 pkg_dependencies="ffmpeg"
-#=================================================
-# PERSONAL HELPERS
-#=================================================
-
-#=================================================
-# EXPERIMENTAL HELPERS
-#=================================================
-
-#=================================================
-# FUTURE OFFICIAL HELPERS
-#=================================================
diff --git a/scripts/change_url b/scripts/change_url
index 289d8f3..18b510f 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -29,10 +29,6 @@ ynh_print_info "Loading installation settings..."
 # Needed for helper "ynh_add_nginx_config"
 final_path=$(ynh_app_setting_get $app final_path)
 
-# Add settings here as needed by your application
-#db_name=$(ynh_app_setting_get "$app" db_name)
-#db_pwd=$(ynh_app_setting_get $app db_pwd)
-
 #=================================================
 # CHECK WHICH PARTS SHOULD BE CHANGED
 #=================================================
diff --git a/scripts/install b/scripts/install
index 9c19827..33d3baf 100755
--- a/scripts/install
+++ b/scripts/install
@@ -30,16 +30,6 @@ domain=$YNH_APP_ARG_DOMAIN
 path_url=$YNH_APP_ARG_PATH
 is_public=$YNH_APP_ARG_IS_PUBLIC
 
-### If it's a multi-instance app, meaning it can be installed several times independently
-### The id of the app as stated in the manifest is available as $YNH_APP_ID
-### The instance number is available as $YNH_APP_INSTANCE_NUMBER (equals "1", "2", ...)
-### The app instance name is available as $YNH_APP_INSTANCE_NAME
-###    - the first time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample
-###    - the second time the app is installed, YNH_APP_INSTANCE_NAME = ynhexample__2
-###    - ynhexample__{N} for the subsequent installations, with N=3,4, ...
-### The app instance name is probably what interests you most, since this is
-### guaranteed to be unique. This is a good unique identifier to define installation path,
-### db names, ...
 app=$YNH_APP_INSTANCE_NAME
 
 #=================================================
@@ -47,8 +37,6 @@ app=$YNH_APP_INSTANCE_NAME
 #=================================================
 ynh_print_info "Validating installation parameters..."
 
-### If the app uses nginx as web server (written in HTML/PHP in most cases), the final path should be "/var/www/$app".
-### If the app provides an internal web server (or uses another application server such as uwsgi), the final path should be "/opt/yunohost/$app"
 final_path=/var/www/$app
 test ! -e "$final_path" || ynh_die "This path already contains a folder"
 
@@ -73,14 +61,6 @@ ynh_app_setting_set $app is_public $is_public
 #=================================================
 ynh_print_info "Installing dependencies..."
 
-### `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 $pkg_dependencies
 ynh_install_php --phpversion="$YNH_PHP_VERSION" --package="$extra_pkg_dependencies"
 
@@ -89,10 +69,6 @@ ynh_install_php --phpversion="$YNH_PHP_VERSION" --package="$extra_pkg_dependenci
 #=================================================
 ynh_print_info "Setting up source files..."
 
-### `ynh_setup_source` is used to install an app from a zip or tar.gz file,
-### downloaded from an upstream source, like a git repository.
-### `ynh_setup_source` use the file conf/app.src
-
 ynh_app_setting_set $app final_path $final_path
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source "$final_path"
@@ -102,8 +78,6 @@ ynh_setup_source "$final_path"
 #=================================================
 ynh_print_info "Configuring nginx web server..."
 
-### `ynh_add_nginx_config` will use the file conf/nginx.conf
-
 # Create a dedicated nginx config
 ynh_add_nginx_config
 
@@ -120,17 +94,6 @@ ynh_system_user_create $app
 #=================================================
 ynh_print_info "Configuring php-fpm..."
 
-### `ynh_add_fpm_config` is used to set up a PHP config.
-### You can remove it if your app doesn't use PHP.
-### `ynh_add_fpm_config` will use the files conf/php-fpm.conf and conf/php-fpm.ini
-### If you're not using these lines:
-###		- You can remove these files in conf/.
-###		- Remove the section "BACKUP THE PHP-FPM CONFIGURATION" in the backup script
-###		- Remove also the section "REMOVE PHP-FPM CONFIGURATION" in the remove script
-###		- As well as the section "RESTORE THE PHP-FPM CONFIGURATION" in the restore script
-###		With the reload at the end of the script.
-###		- And the section "PHP-FPM CONFIGURATION" in the upgrade script
-
 # Create a dedicated php-fpm config
 ynh_add_fpm_config --phpversion="$YNH_PHP_VERSION"
 
@@ -143,10 +106,6 @@ cp ../conf/config.yml "$final_path/config/"
 # STORE THE CONFIG FILE CHECKSUM
 #=================================================
 
-### `ynh_store_file_checksum` is used to store the checksum of a file.
-### That way, during the upgrade script, by using `ynh_backup_if_checksum_is_different`,
-### you can make a backup of this file before modifying it again if the admin had modified it.
-
 # Calculate and store the config file checksum into the app settings
 ynh_store_file_checksum "$final_path/config/config.yml"
 
@@ -156,10 +115,6 @@ ynh_store_file_checksum "$final_path/config/config.yml"
 # SECURE FILES AND DIRECTORIES
 #=================================================
 
-### For security reason, any app should set the permissions to root: before anything else.
-### Then, if write authorization is needed, any access should be given only to directories
-### that really need such authorization.
-
 # Set permissions to app files
 chown -R root: $final_path
 chown -R alltube: $final_path/templates_c/
diff --git a/scripts/upgrade b/scripts/upgrade
index ad75f5d..50353f2 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -129,7 +129,6 @@ ynh_print_info "Upgrading SSOwat configuration..."
 # 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 unprotected_uris "/"
 fi