angular-cli/packages/angular_devkit/build_angular/test/hello-world-lib/angular.json

{
  "$schema": "../../../../packages/angular_devkit/core/src/workspace/workspace-schema.json",
  "version": 1,
  "projects": {
    "lib": {
      "root": "projects/lib",
      "projectType": "library",
      "targets": {
        "build": {
          "builder": "@angular-devkit/build-angular:ng-packagr",
          "options": {
            "project": "projects/lib/ng-package.json",
            "tsConfig": "projects/lib/tsconfig.lib.json"
          },
          "configurations": {
            "production": {
              "tsConfig": "projects/lib/tsconfig.lib.prod.json"
            }
          }
        }
      }
    }
  }
}