Exercise 3: Comparing "Where Business Logic Lives" Across All Four Courses — Possible Solution
====================================================================

VS. THE TWO PYTHON SIBLINGS
------------------------------
In Food Tracker (FastAPI) and Food Tracker (Django), business logic lives in Python code running on a server the developer manages - a genuinely different language from the React frontend in both cases. In this course, business logic also lives in code running on a server the developer manages, but that code is JavaScript - the same language the frontend is written in, removing the language switch those two courses require.

VS. THE FIREBASE SIBLING
------------------------------
In Food Tracker (React + Firebase), there is no server process the developer writes or deploys at all - business logic instead lives mostly in Security Rules (declarative configuration, not imperative code) plus a small number of Cloud Functions for the few places a real secret is genuinely needed. This course is the opposite extreme in that specific sense: virtually all business logic is real, imperative code the developer writes and runs, just written in the same language as the frontend rather than a different one.

WHY THIS WORKS AS AN ANSWER
------------------------------
It correctly identifies that this course shares the "a server process you write and run" model with the two Python courses (differing only in language), and correctly contrasts that against the Firebase course's own fundamentally different model of configuration-plus-managed-infrastructure with little to no developer-authored server code at all.