deployment: try --server-port flag instead of --port

Author: quinn-dougherty

operations/cookbook.service

@@ -6,7 +6,7 @@ After=network.target
 Type=simple
 User=quinn
 WorkingDirectory=/home/quinn/cookbook/book
-ExecStart=/bin/bash -c 'fuser -k 3000/tcp 2>/dev/null || true; /home/quinn/.local/bin/uv run jupyter book start --port 3000 --headless'
+ExecStart=/bin/bash -c 'fuser -k 3000/tcp 2>/dev/null || true; sleep 2; /home/quinn/.local/bin/uv run jupyter book start --server-port 3000 --headless'
 Restart=always
 RestartSec=10
 StandardOutput=journal