mempool/unfurler/config.sample.json

{
  "SERVER": {
    "HOST": "http://localhost",
    "HTTP_PORT": 4201
  },
  "MEMPOOL": {
    "HTTP_HOST": "http://localhost",
    "HTTP_PORT": 4200
  },
  "PUPPETEER": {
    "CLUSTER_SIZE": 2,
    "EXEC_PATH": "/usr/local/bin/chrome", // optional
    "MAX_PAGE_AGE": 86400 // maximum lifetime of a page session (in seconds)
  }
}