[ikitat]

Actually, it's an easy way to: - add two numbers - build the project with dependencies - display stack traces - deliver static files - generate html from code - validate user input - host with a web server - reload the web server during development - handle url routing - log requests - create custom middleware - deploy to EC2

You may have glossed over some of the details.

[blueberry]

No, I didn't gloss over the details with the possible exception of deployment to EC2. Most of the stuff you listed are a prerequisite to web development. For most other languages/frameworks database connection would be included too.