guile-examples/modules/r6rs-libraries/main.scm

(import
  ;; only importing what is needed from rnrs base
  (except (rnrs base) let-values)
  ;; only importing what is needed from guile itself, other than that use stuff
  ;; from rnrs base.
  (only (guile) lambda* λ error when display sleep current-output-port)
  ;; custom imports
  (prefix (lib mylib) mylib:)
  (prefix (helper) helper:))


(define main
  (λ ()
    (simple-format (current-output-port) "~a\n" (mylib:myproc 0))
    (simple-format (current-output-port) "~a\n" (helper:myproc 0))))


(main)