diff --git a/check_process b/check_process
index c6cbd5a..f89ed58 100644
--- a/check_process
+++ b/check_process
@@ -1,8 +1,3 @@
-# See here for more information
-# https://github.com/YunoHost/package_check#syntax-check_process-file
-
-# Move this file from check_process.default to check_process when you have filled it.
-
 ;; Test complet
 	; Manifest
 		domain="domain.tld"
@@ -10,8 +5,7 @@
 		admin="john"
 		language="fr"
 		is_public=1
-		password="pass"
-		port="9001"
+		password="password"
 	; Checks
 		pkg_linter=1
 		setup_sub_dir=1
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 72e3749..320cbb8 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -20,16 +20,3 @@ nodejs_version=14
 #=================================================
 # FUTURE OFFICIAL HELPERS
 #=================================================
-
-# Execute a command as another user
-# usage: ynh_exec_as USER COMMAND [ARG ...]
-ynh_exec_as() {
-  local USER=$1
-  shift 1
-
-  if [[ $USER = $(whoami) ]]; then
-    eval "$@"
-  else
-    sudo -u "$USER" "$@"
-  fi
-}
\ No newline at end of file
diff --git a/scripts/change_url b/scripts/change_url
index e46b99a..5b2e91d 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -115,7 +115,6 @@ ynh_script_progression --message="Starting a systemd service..." --weight=6
 
 # Start a systemd service
 ynh_systemd_action --service_name=$app --action=restart --log_path=systemd --line_match="Your Etherpad version is"
-sleep 120
 
 #=================================================
 # END OF SCRIPT
diff --git a/scripts/install b/scripts/install
index c897fab..88c2303 100644
--- a/scripts/install
+++ b/scripts/install
@@ -103,6 +103,10 @@ ynh_app_setting_set --app=$app --key=final_path --value=$final_path
 
 git clone --branch master https://github.com/ether/etherpad-lite.git "$final_path" --quiet
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
 #=================================================
 # NGINX CONFIGURATION
 #=================================================
@@ -121,7 +125,7 @@ chown -R $app: $final_path
 pushd "$final_path" || ynh_die
   	ynh_use_nodejs
 	ynh_exec_as $app env "$ynh_node_load_PATH" src/bin/installDeps.sh
-	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install ep_automatic_logut ep_countable ep_spellcheck ep_delete_empty_pads ep_subscript_and_superscript ep_headings2 ep_author_hover ep_markdown ep_comments_page ep_align ep_font_color
+	#ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install ep_automatic_logut ep_countable ep_spellcheck ep_delete_empty_pads ep_subscript_and_superscript ep_headings2 ep_author_hover ep_markdown ep_comments_page ep_align ep_font_color
  popd || ynh_die
 
 #=================================================
@@ -132,15 +136,7 @@ ynh_script_progression --message="Configuring Etherpad..." --weight=6
 ynh_add_config --template="../conf/settings.json" --destination="$final_path/settings.json"
 ynh_add_config --template="../conf/credentials.json" --destination="$final_path/credentials.json"
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions to app files
-chown -R $app: $final_path
-chmod 600 $final_path/credentials.json
+chmod 400 $final_path/credentials.json
 
 #=================================================
 # SETUP SYSTEMD
@@ -148,7 +144,7 @@ chmod 600 $final_path/credentials.json
 ynh_script_progression --message="Configuring a systemd service..." --weight=4
 
 # Create a dedicated systemd config
-ynh_add_systemd_config --others_var="ynh_node_load_PATH"
+ynh_add_systemd_config
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
diff --git a/scripts/restore b/scripts/restore
index 3e1e0dc..11acae7 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -66,6 +66,11 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 
 ynh_restore_file --origin_path="$final_path"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+chmod 600 $final_path/credentials.json
+
 #=================================================
 # REINSTALL DEPENDENCIES
 #=================================================
@@ -86,14 +91,6 @@ ynh_psql_test_if_first_run
 ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
 ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name
 
-#=================================================
-# RESTORE USER RIGHTS
-#=================================================
-
-# Restore permissions on app files
-chown -R $app: $final_path
-chmod 600 $final_path/credentials.json
-
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST
 #=================================================
@@ -115,7 +112,6 @@ systemctl enable $app.service --quiet
 ynh_script_progression --message="Starting a systemd service..." --weight=8
 
 ynh_systemd_action --service_name=$app --action=restart --log_path=systemd --line_match="Your Etherpad version is"
-sleep 120
 
 #=================================================
 # GENERIC FINALIZATION
diff --git a/scripts/upgrade b/scripts/upgrade
index 31e3ec6..645d170 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -125,14 +125,9 @@ then
 	popd
 fi
 
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-# SECURE FILES AND DIRECTORIES
-#=================================================
-
-# Set permissions on app files
-chown -R $app: $final_path
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
 chmod 600 $final_path/credentials.json
 
 #=================================================
@@ -141,7 +136,7 @@ chmod 600 $final_path/credentials.json
 ynh_script_progression --message="Upgrading systemd configuration..." --weight=2
 
 # Create a dedicated systemd config
-ynh_add_systemd_config --others_var="ynh_node_load_PATH"
+ynh_add_systemd_config
 
 #=================================================
 # INTEGRATE SERVICE IN YUNOHOST