[adev_]

> Unfortunely not every operating system on planet Earth has a package manager,

And they do not need to.

There is already multi-platforms multi-languages package managers that do this job relatively well (Nix, flatpak, Guix, Spack (to some extend) ) and this is on that we should focus.

[pjmlp]

Which aren't cross platform, UNIX flavours alone doesn't count.