Custom App urls

I am building a frappe project locally using docker and want to have two apps, erpnext and hrms .

After following this guide I am able to build an image and on running the image I am able to access erpnext through localhost:8080 however I am not able to get the hrms url. I do have it on the apps inside nginx entrypoint container but I am not getting its url or how to access it.

Apologies if this has already been asked.