Regarding deployment, the Nix Package Manager (https://nixos.org/nix/) is a very clean solution. It is a package manager and build system, that can be used for building and deploying libraries and applications, with maximal sharing of the same binaries on disk and RAM, but also great isolation: every user/environment/application can use the version of libraries it needs, without influencing other users/environments/applications.

This approach https://nixos.org/nix/ joins the benefits of dynamic and static libraries. Applications are ELF files directly referencing the version of the library they want to use. Different versions of the same library can coexists on the same system, also of glibc in case. Containers on the same machine can too use the same repository of applications and shared libraries, with minimum overhead. I don't know how it is usable in production: I only started playing with it, but it is very sound from a theorical point of view.