diff --git a/.env.example b/.env.example
index 1d6a285..8616e3f 100644
--- a/.env.example
+++ b/.env.example
@@ -6,17 +6,23 @@ POSTGRES_DB=postgres
 PGSAIL_AUTHENTICATOR_PASSWORD=password
 PGSAIL_GRAFANA_PASSWORD=password
 PGSAIL_GRAFANA_AUTH_PASSWORD=password
+# SMTP server settings
 PGSAIL_EMAIL_FROM=root@localhost
 PGSAIL_EMAIL_SERVER=localhost
 #PGSAIL_EMAIL_USER= Comment if not use
 #PGSAIL_EMAIL_PASS= Comment if not use
+# Pushover settings
 #PGSAIL_PUSHOVER_APP_TOKEN= Comment if not use
 #PGSAIL_PUSHOVER_APP_URL= Comment if not use
+# TELEGRAM BOT, ask BotFather
 #PGSAIL_TELEGRAM_BOT_TOKEN= Comment if not use
+# webapp entrypoint, typically the public DNS or IP
 PGSAIL_APP_URL=http://localhost:8080
+# API entrypoint from the webapp, typically the public DNS or IP
 PGSAIL_API_URL=http://localhost:3000
 # POSTGREST ENV Settings
 PGRST_DB_URI=postgres://authenticator:${PGSAIL_AUTHENTICATOR_PASSWORD}@db:5432/signalk
+# % cat /dev/urandom | LC_ALL=C tr -dc 'a-zA-Z0-9' | fold -w 42 | head -n 1
 PGRST_JWT_SECRET=_at_least_32__char__long__random
 # Grafana ENV Settings
 GF_SECURITY_ADMIN_PASSWORD=password