scratch.json

{
  "orgName": "Acme",
  "edition": "Enterprise",
  "features": ["Communities", "ServiceCloud", "EnableSetPasswordInApi"],
  "settings": {
      "communitiesSettings": {
          "enableNetworksEnabled": true
      },
      "mobileSettings": {
          "enableS1EncryptedStoragePref2": true
      },
      "lightningExperienceSettings": {
      "enableS1DesktopEnabled": true
      },
      "omniChannelSettings": {
          "enableOmniChannel": true
      },
      "caseSettings": {
          "systemUserEmail": "[email protected]"
      }
  }
}