It sounds like you're not the technical founder because those two frameworks are completely different in nature and if you were you'd have a clear answer. I don't have professional experience with either. I do have experience with failed startup ideas because I started with a focus on technology and not problem. Btw, I am also Bulgarian so that's probably what we have in common. There are tens of technology stacks that can create a technical solution. However, there are very few founders that can create a strategy and build a business to topple an existing player. Just remember that. The technology should be the easy part to figure out.
Just my 2c.