Extended the template file and refer to wiki

.env.template

@@ -43,6 +43,14 @@
 ## It's recommended to also set 'ROCKET_CLI_COLORS=off'
 # LOG_FILE=/path/to/log
 
+## Enable WAL for the DB
+## Set to false to avoid enabling WAL during startup.
+## Note that if the DB already has WAL enabled, you will also need to disable WAL in the DB,
+## this setting only prevents bitwarden_rs from automatically enabling it on start.
+## Please read project wiki page about this setting first before changing the value as it can
+## cause performance degradation or might render  the service unable to start.
+# ENABLE_DB_WAL=true
+
 ## Disable icon downloading
 ## Set to true to disable icon downloading, this would still serve icons from $ICON_CACHE_FOLDER,
 ## but it won't produce any external network request. Needs to set $ICON_CACHE_TTL to 0,

src/config.rs

@@ -254,7 +254,7 @@ make_config! {
         /// Log file path
         log_file:               String, false,  option;
 
-        /// Enable DB WAL |> Turning this off might lead to worse performance, but might help if using bitwarden_rs on some exotic filesystems, that do not support WAL
+        /// Enable DB WAL |> Turning this off might lead to worse performance, but might help if using bitwarden_rs on some exotic filesystems, that do not support WAL. Please make sure you read project wiki on the topic before changing this setting.
         enable_db_wal:          bool,   false,  def,    true;
     },