I'm building an Angular library with ng-packagr.

{
  "$schema": "./node_modules/ng-packagr/ng-package.schema.json",
  "src": "lib",
  "dest": "dist/auth",
  "workingDirectory": ".ng_build",
  "lib": {
    "entryFile": "public_api.ts",
    "externals": {
      "oidc-client": "./node_modules/oidc-client/dist/oidc-client.min.js",
      "rxjs/add/operator/let": "Rx.Observable.prototype"
    }
  }
}

{
  "compilerOptions": {
    "target": "es5",
    "module": "es2015",
    "lib": [
      "es6",
      "dom"
    ],
    "moduleResolution": "node",
    "declaration": true,
    "experimentalDecorators": true,
    "baseUrl": ".",
    "stripInternal": true,
    "outDir": "./dist",
    "sourceMap": true,
    "inlineSources": true,
    "skipLibCheck": true
  },
  "exclude": [
    "node_modules",
    "dist",
    "demo",
    "config",
    "coverage",
    "src/**/*.spec.ts"
  ],
  "angularCompilerOptions": {
    "strictMetadataEmit": true,
    "skipTemplateCodegen": true,
    "trace": true
  }
}