embark/test/test1/config/contracts.json

{
  "default": {
    "gas": "auto",
    "contracts": {
      "SimpleStorage": {
        "args": [
          100
        ]
      }
    }
  },
  "myenv": {
    "gas": "400 Kwei",
    "contracts": {
      "SimpleStorage": {
        "gas": "123 Kwei",
        "gasPrice": "1 Kwei"
      },
      "Token": {
        "args": [
          200
        ]
      }
    },
    "deployment": {
      "accounts": [
        {
          "mnemonic": "12 word mnemonic",
          "balance": "5000 Mwei"
        }
      ]
    }
  }
}