[rekado]

>> If you want something fancier, you could go with something like [Guix](https://guix.gnu.org/) or [Nix](https://nixos.org/explore.html) if your customers are developers or otherwise technical.

> No thanks. I'd rather not have to learn an entirely new language just to do things like distribute and install applications.

Common misunderstanding, but you don't need to know Guile or the Nix language to use either of these systems.

"guix install foo", "guix pack -f docker bar", etc.

Guix also has package transformation options ("build with this patch", "build with these sources instead", "replace foo with bar in the package graph") that are exposed to the command line and also don't require you learn any Scheme.