~/projects/graphical-installer_guix [env]$ ./pre-inst-env guix system disk-image gnu/system/install.scm guix system: error: failed to load 'gnu/system/install.scm': gnu/system/examples/bare-bones.tmpl:18:22: gnu/system/examples/bare-bones.tmpl:18:22: In procedure allocate-struct: Wrong type argument in position 2: 11