I simply chose this DB instead of any other one is because I'm pretty familiar with it and its really good for this kind of web app, no need to complicate things (KISS).
This is the best LLM out there, I gave the intruction to act as a mentor to me and guide on implementing features and Claude Sonnet 3.5 did a fantastic job at it. I tried GPT 4 omni, but it never really understood what I was trying to do and it always messes up what I was expecting and what it produced