At least for me the thing is I never "just" want to install a package (for myself). If its a personal PC I probably also want the package if I ever were to rei

At least for me the thing is I never "just" want to install a package (for myself). If its a personal PC I probably also want the package if I ever were to reinstall the PC. => Use NixOS and add it to the configuration. If its for work I probably want my colleagues to have the package as well => nix-shell. Once I started using Nix just quickly installing a package felt really hacky to me, just like a dirty workaround. I just hate when some project's README.md says: "Yeah, just do apt-get install <long list of packages> and you are good to go". The chance that this works successfully is about 0. EDIT: typo