[sadfev]

Now this looks promising!

I hope with advent of modules we can get package manager half as good as cargo but for C++

[ris]

Nix.

There isn't an ensmallen package yet, but I wouldn't imagine it will take long and I guess it'll be a 20-30 line package.

[einpoklum]

Have you tried the Conan package manager? It seems to be gaining in popularity in recent years:

http://conan.io/

(Personally I haven't used it yet)

[beached_whale]

I don't think modules are going to help with packaging. But vcpkg is getting pretty good, with C++'s ecosystem being the way it is. There is no one way, and it seems to allow for a multitude of build systems. I've been using it with it's newer manifest mode and mostly don't need to leave it these days.

[physicsguy]

Spack is pretty damn good for scientific stuff

[flemishgun]

The library is header-only, so that at least makes the packaging process a little easier.

[seanw444]

Isn't that what the OS package manager is for?