There are some (the article's author builds a pretty sophisticated one: https://github.com/destel/rill ), but the ecosystem spent a very long time vilifying abstraction and generics and we're going to be paying that price for another decade at least. Possibly forever.

Generics in particular are rather important here because without them, you are forced to build this kind of thing from scratch every time to retain type safety and performance, or give up and use reflection (more complicated, less safe, requires careful reading to figure out how to use because everything is an `interface{}`). This works, and Go's reflection is quite fast, but it's not a good experience for authors or users, so they're rather strongly incentivized to not build it / just do it by hand lol.

Now that we have a somewhat crippled version of generics, much of this can be solved in an ideal way: https://pkg.go.dev/slices works for everything and is fast, safe, easy to use, and reasonably easy to build. But there's a decade of inertia (with both existing code and community rejection of the concept) to turn around.