Hi,

I think guile-ini package is missing a dependency on guile-lib package.

    $ guix shell -C guile guile-ini -- guile -c '(use-modules (ini))'
    Backtrace:
    In ice-9/boot-9.scm:
      3564:26 19 (_)
    In unknown file:
              18 (primitive-load-path "ini/fsm" #<procedure 7ff9f57daf20?>)
    In ice-9/boot-9.scm:
      3923:23 17 (_)
       3411:4 16 (define-module* _ #:filename _ #:pure _ #:version _ # _ ?)
      3424:24 15 (_)
       222:29 14 (map1 (((oop goops)) ((smc fsm)) ((ini fsm-context)) # ?))
       222:17 13 (map1 (((smc fsm)) ((ini fsm-context)) ((ini #)) ((?))))
      3327:17 12 (resolve-interface (smc fsm) #:select _ #:hide _ # _ # _ ?)
    In ice-9/threads.scm:
        390:8 11 (_ _)
    In ice-9/boot-9.scm:
      3253:13 10 (_)
    In ice-9/threads.scm:
        390:8  9 (_ _)
    In ice-9/boot-9.scm:
      3544:20  8 (_)
       2836:4  7 (save-module-excursion #<procedure 7ff9f57c9420 at ice-?>)
      3564:26  6 (_)
    In unknown file:
               5 (primitive-load-path "smc/fsm" #<procedure 7ff9f57dac60?>)
    In ice-9/boot-9.scm:
      3923:23  4 (_)
       3411:4  3 (define-module* _ #:filename _ #:pure _ #:version _ # _ ?)
      3424:24  2 (_)
       222:17  1 (map1 (((scheme documentation)) ((oop goops)) ((# #)) ?))
       3330:6  0 (resolve-interface (scheme documentation) #:select _ # _ ?)
    
    ice-9/boot-9.scm:3330:6: In procedure resolve-interface:
    no code for module (scheme documentation)

Compared to (which does not produce an error):

    $ guix shell -C guile guile-ini guile-lib -- guile -c '(use-modules (ini))'

Have a nice day,
W.

-- 
There are only two hard things in Computer Science:
cache invalidation, naming things and off-by-one errors.