sk-auth | Authentication library for use with SvelteKit | Frontend Framework library

I have built a Svelte application using SvelteKit that uses Cognito for authentication. I used the following site: Cognito authentication for your SvelteKit app guide me in setting this up. The app and connection to Cognito works well when running in local development via npm run dev, however, when running in production on an EC2 server via npm run build and pm2 start /build/index.js it sets the redirect_uri portion of the Cognito URI to http://localhost:3000. I can't figure out how to get it to set the redirect to my actual domain.

Here are some relevant code snippets on how it is currently set up on EC2:

/etc/nginx/sites-available/domain.conf

This question has a similar question that was posted 7 years ago. I want to know what is pertinent currently. Flask-auth, Principal and Flask Security

I have found so much documentation on login and user authorization and controls im a little uncertain how I should be going about this. Im using Flask_SQLAlchemy and sqlite to build a CRUD app. I want to be able to create user specific login authorization and roles so that some portions of the app are or are not visible depending on your role and or authorization. I was hoping that maybe someone could provide the differences and/or the pros and cons or maybe what the industry standard is? Im looking at

Flask-Admin - https://flask-admin.readthedocs.io/en/latest/introduction/

Role based Authorization - https://flask-user.readthedocs.io/en/latest/authorization.html

login_required - https://flask-login.readthedocs.io/en/latest/

Flask Principal - https://pythonhosted.org/Flask-Principal/

Also, theres the option of writing your own code, Im already using -