ens-usernames/config/contracts.json

{
  "default": {
    "deployment": {
      "host": "localhost",
      "port": 8545,
      "type": "rpc"
    },
    "dappConnection": [
      "$WEB3",
      "http://localhost:8545"
    ],
    "gas": "auto",
    "contracts": {
      "ERC20Receiver": {
        "deploy": false
      },
      "TestToken": {
        "deploy": false
      }
    }
  },
  "development": {
    "contracts": {
      "TestToken": {
        "deploy": true
      }  
    }
  }
}