diff --git a/deploy/thermograph.env.example b/deploy/thermograph.env.example
index 0ec3883..2ed135f 100644
--- a/deploy/thermograph.env.example
+++ b/deploy/thermograph.env.example
@@ -73,3 +73,12 @@ THERMOGRAPH_BASE_URL=https://thermograph.org
 # value, which would invalidate every outstanding link on each restart.
 #   generate with:  python -c "import secrets; print(secrets.token_urlsafe(48))"
 #THERMOGRAPH_AUTH_SECRET=
+
+# --- Discord ---------------------------------------------------------------------
+# Incoming webhook URL for the daily "most unusual right now" post. Create it in the
+# Discord server: Channel → Edit → Integrations → Webhooks → New Webhook → Copy URL.
+# The URL IS the credential — anyone who has it can post as the webhook, so keep it
+# here and never in the repo. Unset => the daily post is disabled (no-op).
+# The post rides the notifier daemon (leader-only), once per day after the feed
+# refresh, so it needs THERMOGRAPH_ENABLE_NOTIFIER on (the default).
+#THERMOGRAPH_DISCORD_WEBHOOK=