yeah it would be great to see some other works. as far as I know, people did CRM, Blockchain app, e-Commerce, Social Networking, Newspaper Archive, POS, Employee management, LMS, Alarm Manipulation site, Life Science, Health Care, IT Infrastructure Management and government applications...
What have you done so far?
try ng build --prod --build-optimize --environment=staging
https://stackoverflow.com/a/48154480/1767482