Hey. Well, technology in startups is always a complicated matter. The main thing is to understand why integrate the various and whether it is worth it at all. Many people always write program code in pure languages, so as not to fall into the backdoors of the frameworks. Others, on the contrary, so as not to create their backdoors. In general, a startup is better to transfer to companies that are more experienced in development. Personally, I agree with this article
https://clockwise.software/blog/startup-mvp-insights-to-build-a-successful-business/. In fact, for beginners, it is always very difficult to start technology startups!