[maxbond]

Here's a thought experiment people may or may not find helpful. If you're writing say a Flask app, what Flask is doing for you is routing a request to a function. That's where the core kernel of value is; the rest of what's going on is overhead you pay to wire your function up to what it needs, like a database connection pool and such.

So if you were AWS and you saw everyone running an instance of Flask, you might think to yourself, I could run one really big instance of Flask that everyone could share, and the economies of scale would mean I could charge a cheaper price.

And you as the software developer might think, well, I get paid to execute these functions, not to run Flask, so I might as well rent a spot in the big Flask. Then I won't have to spend time updating and maintaining the framework, I can focus on writing my functions.

This may or may not work out for a specific use case, eg maybe that database connection pooler that we threw out was load bearing and moving to serverless overwhelms our database or causes us to spin up more database servers and costs more money. YMMV.