Hi, On Wed, 23 Nov 2022 at 19:09, Abhishek Cherath wrote: > guix package has --install-from-expression, but I guess that doesn't > propagate to guix install because that's an alias for guix package -i Yes, this appears to me covering your use case for hidden packages. Well, I even missed it in my previous message [1]. :-) So I still miss what is the use case. For instance, guix package -e '(@@ (gnu packages rust) rust-1.65)' works and all the transformation options are also available in “guix package”. Therefore, in the command line, guix package -i $(guix build …) I miss what the … (dots) could be that cannot be expressed without “guix build”. Maybe cross-compiled packages with --system or --target? 1: Cheers, simon