Managing multiple versions of libraries, SDKs, and compilers/interpreters is a challenge.Compiling from source can be difficult to remove or upgrade and may lead to symlink and dependency conflicts.Using official repositories is a better option but can have issues with removing packages and managing versions.Using 3rd party PPAs or package managers can be risky and may not always have the specific version needed.Using environment managers like pyenv, goenv, and nvm provides a manageable and robust solution for managing multiple versions.