Comment by LordHeini

From personal experience I would copy the Go approach and do both.

Go has a large and extensive stdlib which can do basically anything.

On top nearly everything has an interface defined by that lib, which is used by third party libraries too.

So a lot of code, libraries and so on becomes sort of plug and play and just works together.

That is really great and one of the reasons why i made our company use Go for our backed stuff.

A bad standard library like PHP or a non existent like Javascripts is a thing that is a massive hindrance to developers. It wastes so incredibly much time it is absolutely insane. Ask me how I know...

The Rust people are in the unique situation that they could actually kill the fragmentation and set a standard. It's a lot if work but there are good examples to copy ideas from.