[Jugurtha]

>I'm looking to build my startup currently as a solo founder

Great!

Do more towards this, less about everything you wrote after that.

Can you profitably solve a problem for a market you can reach? Can you then do it repeatably?

You want to build a start-up but your post was about Django, FormView, ListView, and React...

What should you be doing that you're hiding from behind the sudden urge to focus on things that don't matter?

You have six years of experience with Flask; you obviously can write code. The start-up cemetery is filled with billions of lines of code in every imaginable language and framework. Don't worry about that.