Like what?
SSL is so simple and automatic with certbot.
Then there's CORS if you really need to load resources from other sites, but you won't need that for small sites.
Making the backend is easier than ever. It's much harder to make security mistakes nowadays.
And if you don't know what you're doing, just ask an LLM if you made any fuckups..
How you take jokes has nothing to do with your sexuality or gender either