host/cvd_test_configs/main_phone.json

{
  "instances": [
    {
      "@import": "phone",
      "vm": {
        "memory_mb": 8192,
        "setupwizard_mode": "OPTIONAL",
        "cpus": 4
      },
      "disk": {
        "default_build": "@ab/git_main/cf_x86_64_phone-trunk_staging-userdebug"
      }
    }
  ]
}