I am interested in being able to bootstrap multiple applications with the angular cli.
Through the angular-cli wiki I was able to find an example https://github.com/
You can use ng generate application command to create separate application. This creates 'projects' folder with environment same as base application. But there will be shared modules. How will you refer at both places? One option is to use relative path.
This article explains with example https://medium.com/disney-streaming/combining-multiple-angular-applications-into-a-single-one-e87d530d6527
I also found one problem with this approach. You need to lazy load sub applications from main application. For this, route path need to be specified in base app.routes.ts file. What if you want to build only base without sub applications? You need to maintain two versions of app.routes.ts file