platform/packages/platform-rig/profiles/default/config/rush-project.json

{
    "incrementalBuildIgnoredGlobs": ["temp/**", "dist_cache/**", "lib/**"],
    "disableBuildCacheForProject": false,
  
    "operationSettings": [
      {
        "operationName": "build",
        "outputFolderNames": ["lib", "dist"]
      }     
    ]
  }