@firstname.lastname@example.org Is right here, as much as I’m strongly opinionated on the subject, there is no “hard” and “fast” (right or wrong) rule here. There are only “rules of thumb”, “guidelines” and “experience”.
And as @email@example.com nicely points out, the real problem is likely the exponential effect of dependencies. Fortunately or unfortunately (depending on how you look at it) libraries can also have dependencies (and good language really will support this), but the thing we often refer to as “dependency hell” comes from this “exponential dependency tree” that we inevitably see in ecosystems like NodeJS / NPM (are there other examples? I feel like I pick on NodeJS / NPM too much 🤣)