"edge" is subjective. D's edge at my employer is that we can generate enormous amounts of code at compile time within a framework that non-programmers can still understand. This is because of being good at multiple things.
Shit languages with "good" ecosystems are still shit. They're crap. Once you have the library you want, you're still mercy to bad language design.
what are you building, i think i can recommend another language, that would have been a better strategic choice
and if i may guess, whatever you are building, this is not a new company and not a new product, probably something that started between 2000-2005 if not even before
I wrote many parsers, sell me F# memes. What's the biggest one? Option? I wrote a Nullable wrapper for myself too, still looking for a place to use it.
Shit languages with "good" ecosystems are still shit. They're crap. Once you have the library you want, you're still mercy to bad language design.