;; What follows is a "manifest" equivalent to the command line you gave.
;; You can store it in a file that you may then pass to any 'guix' command
;; that accepts a '--manifest' (or '-m') option.

(specifications->manifest
  (list
    ; Guile
    "guile"
    ; Racket
    "racket-minimal"
    ; Gambit
    "gambit-c"
    ; Chicken
    "chicken"
    ; Gerbil
    "gerbil"
    ; Cyclone
    "ck"
    ; Kawa
    "openjdk"
    ; Test libraries
    "curl"
    ; Compilers
    "zig"
    "gcc-toolchain"))