[oblio]

There isn't any. There are a few partial ones like conan, etc.

And many people in the community are against it, you'll hear stuff ranging from "just use the distro package manager" to "don't use any, make it a single file library".

Personally, I'd say all hope is lost.

[wizzledonker]

Just because I’m curious, in what respect is Conan a “partial” package manager? Within the constraints of existing C++ projects and the variance of their build systems, I can’t imagine how to do it differently.

In my experience, most of the value of Conan is with creating packages yourself when needed. You can then self-host a Conan remote and have pre-compiled binaries ready development. Having a conan recipes repository with CI that produces binaries for each required build configuration has become a de-facto standard for projects I have worked on

[oblio]

Well, I'll expand.

For 95% of Java devs, JavaScript devs, Python devs, if it's Open Source and it isn't on Maven Central, NPM, PyPi, it might as well not exist.

The reverse is true, if you have any library or tool worth a damn, it's there.