In my experience getting a company to function is mostly about things like people, vision, marketing, and when it comes to coding that starts with understanding

In my experience getting a company to function is mostly about things like people, vision, marketing, and when it comes to coding that starts with understanding how data should flow so the next step is usually not decisions about a language or database but what existing contextually relevant data processing tools to leverage. Often the best libraries and frameworks to consider support several languages but that is not always the case. And different product elements may use different tools as needed with the user interface being inevitably necessary and a world in itself that does not necessarily strongly shape how the back end generates, stores, and finds data.