Ask HN: Community based FAQs

I was recently reading Python FAQ about the language [1] and found myself enjoying the no-bullshit explanations about architectural decisions, internals and common pitfalls.

For example, this basic pitfall regarding a mutable list [2], is quite thoroughly explained along with best practices advice.

So my question is if there are similiar FAQs regarding other things in general, like for example architecture, databases, services, distributed systems, scalability, ML etc.

Can someone recommend something?

[1] https://docs.python.org/3.5/faq/index.html [2] https://docs.python.org/3.5/faq/programming.html#why-did-changing-list-y-also-change-list-x