{
  "title": "Split three more very large linux_configuration scripts",
  "objective": "Bring raspberry_pi_nextcloud.sh (1276), root_bl9000.sh (1116) and lookup_docs.sh (942) under the 250-line cap, fixing the cd handling the splits expose rather than suppressing it.",
  "acceptance_criteria": [
    "All three entry scripts and all sixteen new libs are at most 250 lines.",
    "The pre-commit shellcheck hook passes on every touched file, with no new suppression and no disable directive.",
    "No lib sources a sibling: each entry script sources every lib directly, in dependency order.",
    "The stubbed run reports every moved function as defined, for all three scripts.",
    "Every SC2164 and SC2103 the split exposes is fixed at the source. Where a function exports a variable to its caller it must not become a subshell; guard the cd and restore the previous directory instead.",
    "No script is executed. These flash SD cards, root a phone over USB and configure a web server."
  ],
  "out_of_scope": [
    "Executing any flash, root or configure step.",
    "check_and_enable_services.sh and the other deferred scripts, whose seams cross shared mutable state.",
    "Changing what any script does when run, beyond the cd guards."
  ],
  "verifier": "meta/scripts/verify_shell_split.sh per script, plus shellcheck over every lib in isolation, plus a grep confirming no lib sources a sibling, plus pre-commit run --files and check_file_length.sh."
}