diff --git a/Caddyfile b/Caddyfile
--- a/Caddyfile
+++ b/Caddyfile
@@ -110,13 +110,13 @@ health_interval 30s
         health_timeout 5s
 
         # Headers for proper client IP handling
+        header_up Host {host}
         header_up X-Real-IP {remote_host}
         header_up X-Forwarded-For {remote_host}
         header_up X-Forwarded-Proto {scheme}
 
-        # WebSocket support for firehose
-        header_up Connection {>Connection}
-        header_up Upgrade {>Upgrade}
+        # Note: Caddy v2 handles WebSocket upgrades automatically
+        # No need for explicit Connection/Upgrade headers
     }
 
     # Logging (Docker captures stdout/stderr)
diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -127,6 +127,7 @@ PDS_HOSTNAME: coves.me
       PDS_PORT: 3000
       PDS_DATA_DIRECTORY: /pds
       PDS_BLOBSTORE_DISK_LOCATION: /pds/blocks
+      PDS_BLOB_UPLOAD_LIMIT: 104857600  # 100 MB
 
       # PLC Directory (production)
       PDS_DID_PLC_URL: https://plc.directory