angular.json

{
    "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
    "version": 1,
    "newProjectRoot": "src",
    "projects": {
        "scrollbar": {
            "root": "",
            "sourceRoot": "src",
            "projectType": "library",
            "prefix": "lib",
            "architect": {
                "build": {
                    "builder": "@angular-devkit/build-angular:ng-packagr",
                    "options": {
                      "project": "ng-package.json"
                    },
                    "configurations": {
                      "production": {
                        "tsConfig": "src/tsconfig.lib.json"
                      }
                    },
                    "defaultConfiguration": "production"
                }
            }
        }
    },
    "defaultProject": "scrollbar"
}