@copperjs/copper/examples/nodeConfig.json

A lightweight chromium grid

{
    "host": "node",
    "port": "9115",
    "hubHost": "hub",
    "hubPort": "9115",
    "maxSession": 5,
    "nodePolling": 10000,
    "defaultSessionOptions": { "chromeFlags": ["--headless", "--disable-gpu"] }
}