anchor.diff:  { stdenv, fetchurl, coreutils, utillinux,
     nettools, kbd, bc, which, gnused, gnugrep,
  -  groff, man-db, glibc, libiconv, pcre2,
  +  groff, man-db, glibc, musl-getent, libiconv, pcre2,
     gettext, ncurses, python3
   
     , writeText
  
positive.code: with stdenv.lib;
  
  let
    etcConfigAppendixText = ''
      ############### ↓ Nix hook for sourcing /etc/fish/config.fish ↓ ###############
      #                                                                             #
  
negative.code:       sed -e "s| ul| ${utillinux}/bin/ul|" \
            -i "$out/share/fish/functions/__fish_print_help.fish"
        for cur in $out/share/fish/functions/*.fish; do
          sed -e "s|/usr/bin/getent|${getent}|" \
              -i "$cur"
        done
  
  