On 16-07-2022 21:44, Julien Lepiller wrote:
> Since I couldn't figure out how to make a package for a given target, I
> added a transformation to (guix build-system) that replaces the
> keywords to force a package to build for a given architecture.


Try:

scheme@(guix-user)> ,build (with-parameters ((%current-target-system 
"aarch64-linux-gnu")) (specification->package "hello"))

[...]

$3 = "/gnu/store/rys78r4j72zh45xchq87x2y30ya8mzvi-hello-2.12.1"

Greetings,

Maxime.