diff --git a/local-network/configs/besu/besu.conf b/local-network/configs/besu/besu.conf
index a86d6232..1958b04c 100644
--- a/local-network/configs/besu/besu.conf
+++ b/local-network/configs/besu/besu.conf
@@ -1,3 +1,4 @@
+# See https://besu.hyperledger.org/public-networks/reference/cli/options
 # /opt/besu belongs to besu user: https://github.com/hyperledger/besu/blob/main/docker/openjdk-17/Dockerfile
 # so it is the only writable path
 data-path = "/opt/besu/data"
diff --git a/local-network/configs/besu/run-besu.sh b/local-network/configs/besu/run-besu.sh
index 03076d5f..289c89d2 100755
--- a/local-network/configs/besu/run-besu.sh
+++ b/local-network/configs/besu/run-besu.sh
@@ -6,7 +6,6 @@ tee /opt/besu/logs/besu.log <<EOF
 IP: $IP
 EOF
 
-# https://besu.hyperledger.org/public-networks/reference/cli/options
 # --p2p-host="ec-1" # Doesn't work: https://github.com/hyperledger/besu/issues/4380
 besu \
   --config-file=/config/besu.conf \
diff --git a/src/main/resources/application.conf b/src/main/resources/application.conf
index 28544b41..630935a7 100644
--- a/src/main/resources/application.conf
+++ b/src/main/resources/application.conf
@@ -12,6 +12,9 @@ units {
       known-peers = []
       file = null
     }
+
+    # Optional:
+    # jwt-secret-file = "/path/to/jwt/secret"
   }
 
   chains = [
@@ -27,6 +30,8 @@ units {
   #       "5.6.7.8:6865"
   #     ]
   #   }
+  #   # Optional:
+  #   # jwt-secret-file = "/path/to/jwt/secret"
   # }
   ]
 }