Hello, Taegil Bae writes: […] > But actually I have used '-L ./my-guix'. This option is not working > with 'guix system', but is working with 'guix build' and 'guix > package'. […] Could you place a (pk '%load-path %load-path) sexp before the (operating-system ...) to see what does Guile load? Thanks, Oleg.