diff --git a/bin/linux-workstation-bootstrap b/bin/linux-workstation-bootstrap
index 2cf31e0..74f5da2 100755
--- a/bin/linux-workstation-bootstrap
+++ b/bin/linux-workstation-bootstrap
@@ -22,4 +22,4 @@ readonly LWBS_ROOT="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
 source "$LWBS_ROOT/lib/bootstrap.sh"
 
 # Pass all CLI arguments to the application entry point.
-bootstrap_main "$@"
\ No newline at end of file
+bootstrap_main "$@"
diff --git a/config/defaults.sh b/config/defaults.sh
index c3ed3cc..0a18d78 100755
--- a/config/defaults.sh
+++ b/config/defaults.sh
@@ -32,9 +32,9 @@ declare -ar LWBS_SUPPORTED_DISTROS=(
 
 # Human-readable names for supported distribution profiles.
 declare -Ar LWBS_DISTRO_DISPLAY_NAMES=(
-    [ubuntu]="Ubuntu"
-    [debian]="Debian"
-    [kali]="Kali Linux"
+    ["ubuntu"]="Ubuntu"
+    ["debian"]="Debian"
+    ["kali"]="Kali Linux"
 )
 
 # Default distribution selection behaviour.
@@ -53,46 +53,46 @@ readonly LWBS_CONFIG_FILE_NAME="config.conf"
 # Additional distributions may be detected even when they do not yet
 # have an installation profile supported by the application.
 declare -Ar LWBS_DISTRO_FAMILIES=(
-    [ubuntu]="debian"
-    [debian]="debian"
-    [kali]="debian"
-    [linuxmint]="debian"
-    [pop]="debian"
-    [elementary]="debian"
-
-    [fedora]="rpm"
-    [rhel]="rpm"
-    [rocky]="rpm"
-    [almalinux]="rpm"
-    [centos]="rpm"
-
-    [arch]="arch"
-    [manjaro]="arch"
-    [endeavouros]="arch"
-
-    [opensuse-leap]="suse"
-    [opensuse-tumbleweed]="suse"
-    [sles]="suse"
+    ["ubuntu"]="debian"
+    ["debian"]="debian"
+    ["kali"]="debian"
+    ["linuxmint"]="debian"
+    ["pop"]="debian"
+    ["elementary"]="debian"
+
+    ["fedora"]="rpm"
+    ["rhel"]="rpm"
+    ["rocky"]="rpm"
+    ["almalinux"]="rpm"
+    ["centos"]="rpm"
+
+    ["arch"]="arch"
+    ["manjaro"]="arch"
+    ["endeavouros"]="arch"
+
+    ["opensuse-leap"]="suse"
+    ["opensuse-tumbleweed"]="suse"
+    ["sles"]="suse"
 )
 
 # Default package manager for each distribution family.
 declare -Ar LWBS_FAMILY_PACKAGE_MANAGERS=(
-    [debian]="apt"
-    [rpm]="dnf"
-    [arch]="pacman"
-    [suse]="zypper"
+    ["debian"]="apt"
+    ["rpm"]="dnf"
+    ["arch"]="pacman"
+    ["suse"]="zypper"
 )
 
 # Normalize common architecture names used by Linux distributions.
 declare -Ar LWBS_ARCH_ALIASES=(
-    [x86_64]="amd64"
-    [aarch64]="arm64"
-    [arm64]="arm64"
-    [armv7l]="armhf"
-    [i386]="i386"
-    [i486]="i386"
-    [i586]="i386"
-    [i686]="i386"
+    ["x86_64"]="amd64"
+    ["aarch64"]="arm64"
+    ["arm64"]="arm64"
+    ["armv7l"]="armhf"
+    ["i386"]="i386"
+    ["i486"]="i386"
+    ["i586"]="i386"
+    ["i686"]="i386"
 )
 
 # Persistent logging configuration.
@@ -102,4 +102,4 @@ readonly LWBS_LOG_FILE_PREFIX="run"
 # Permissions applied to application state and log files.
 readonly LWBS_STATE_DIR_MODE="700"
 readonly LWBS_LOG_DIR_MODE="700"
-readonly LWBS_LOG_FILE_MODE="600"
\ No newline at end of file
+readonly LWBS_LOG_FILE_MODE="600"
diff --git a/config/packages/debian.sh b/config/packages/debian.sh
index 218ee07..c7479fb 100644
--- a/config/packages/debian.sh
+++ b/config/packages/debian.sh
@@ -19,4 +19,4 @@ LWBS_CAPABILITY_PACKAGES=(
     [sed]="sed"
     [wget]="wget"
     [xz]="xz-utils"
-)
\ No newline at end of file
+)
diff --git a/config/packages/kali.sh b/config/packages/kali.sh
index 03bfc35..33ce1af 100644
--- a/config/packages/kali.sh
+++ b/config/packages/kali.sh
@@ -19,4 +19,4 @@ LWBS_CAPABILITY_PACKAGES=(
     [sed]="sed"
     [wget]="wget"
     [xz]="xz-utils"
-)
\ No newline at end of file
+)
diff --git a/config/packages/ubuntu.sh b/config/packages/ubuntu.sh
index 356a2b8..2a362af 100644
--- a/config/packages/ubuntu.sh
+++ b/config/packages/ubuntu.sh
@@ -19,4 +19,4 @@ LWBS_CAPABILITY_PACKAGES=(
     [sed]="sed"
     [wget]="wget"
     [xz]="xz-utils"
-)
\ No newline at end of file
+)
diff --git a/distros/debian.sh b/distros/debian.sh
index 1f1dda0..1d19387 100644
--- a/distros/debian.sh
+++ b/distros/debian.sh
@@ -159,4 +159,4 @@ distro_install_local_package() {
 
     run_privileged_command \
         apt-get install --yes "$package_file"
-}
\ No newline at end of file
+}
diff --git a/distros/kali.sh b/distros/kali.sh
index ee56374..212a3e9 100644
--- a/distros/kali.sh
+++ b/distros/kali.sh
@@ -160,4 +160,4 @@ distro_install_local_package() {
 
     run_privileged_command \
         apt-get install --yes "$package_file"
-}
\ No newline at end of file
+}
diff --git a/distros/ubuntu.sh b/distros/ubuntu.sh
index 3c58f3a..b10e03c 100644
--- a/distros/ubuntu.sh
+++ b/distros/ubuntu.sh
@@ -168,4 +168,4 @@ distro_install_local_package() {
 
     run_privileged_command \
         apt-get install --yes "$package_file"
-}
\ No newline at end of file
+}
diff --git a/lib/arguments.sh b/lib/arguments.sh
index c9708d1..4b8343c 100755
--- a/lib/arguments.sh
+++ b/lib/arguments.sh
@@ -75,4 +75,4 @@ parse_arguments() {
     done
 
     return 0
-}
\ No newline at end of file
+}
diff --git a/lib/bootstrap.sh b/lib/bootstrap.sh
index 6fba6d0..50e6228 100755
--- a/lib/bootstrap.sh
+++ b/lib/bootstrap.sh
@@ -190,4 +190,4 @@ select_distro_profile() {
     fi
 
     choose_distro_profile
-}
\ No newline at end of file
+}
diff --git a/lib/capability.sh b/lib/capability.sh
index d7ed0a1..e1ee585 100644
--- a/lib/capability.sh
+++ b/lib/capability.sh
@@ -263,4 +263,4 @@ reset_capability_map() {
     LWBS_CAPABILITY_PROFILE=""
     LWBS_CAPABILITY_MAP_PATH=""
     LWBS_CAPABILITY_PACKAGES=()
-}
\ No newline at end of file
+}
diff --git a/lib/config.sh b/lib/config.sh
index 978a32f..ef6ed2e 100644
--- a/lib/config.sh
+++ b/lib/config.sh
@@ -218,4 +218,4 @@ load_user_config() {
         "Configured default distribution profile: $LWBS_CONFIG_DISTRO_PROFILE"
 
     return 0
-}
\ No newline at end of file
+}
diff --git a/lib/core.sh b/lib/core.sh
index 39864bb..9c8b5f4 100755
--- a/lib/core.sh
+++ b/lib/core.sh
@@ -63,4 +63,4 @@ is_supported_distro() {
     done
 
     return 1
-}
\ No newline at end of file
+}
diff --git a/lib/detect.sh b/lib/detect.sh
index 75236e9..1c9d101 100755
--- a/lib/detect.sh
+++ b/lib/detect.sh
@@ -114,4 +114,4 @@ detect_architecture() {
 
     printf '%s\n' \
         "${LWBS_ARCH_ALIASES[$architecture]:-$architecture}"
-}
\ No newline at end of file
+}
diff --git a/lib/distro.sh b/lib/distro.sh
index 1e33557..e2cca3b 100644
--- a/lib/distro.sh
+++ b/lib/distro.sh
@@ -119,4 +119,4 @@ reset_distro_adapter_contract() {
 
     DISTRO_ADAPTER_PROFILE=""
     DISTRO_ADAPTER_PATH=""
-}
\ No newline at end of file
+}
diff --git a/lib/execution.sh b/lib/execution.sh
index daf1255..e0e2422 100644
--- a/lib/execution.sh
+++ b/lib/execution.sh
@@ -109,4 +109,4 @@ run_privileged_command() {
     # sudo executes the requested command while run_command retains the
     # common execution and exit-code handling.
     run_command sudo -- "$@"
-}
\ No newline at end of file
+}
diff --git a/lib/external.sh b/lib/external.sh
index 6a86685..2922da4 100644
--- a/lib/external.sh
+++ b/lib/external.sh
@@ -727,4 +727,4 @@ reset_external_installer_contract() {
     LWBS_EXTERNAL_METHOD=""
     LWBS_EXTERNAL_PATH=""
     LWBS_EXTERNAL_STAGE_DIR=""
-}
\ No newline at end of file
+}
diff --git a/lib/logging.sh b/lib/logging.sh
index 255e7f9..83d5e26 100755
--- a/lib/logging.sh
+++ b/lib/logging.sh
@@ -88,4 +88,4 @@ log_warning() {
 # Write an error event to the session log.
 log_error() {
     log_message "ERROR" "$1"
-}
\ No newline at end of file
+}
diff --git a/lib/module.sh b/lib/module.sh
index 9d432a4..862fb7b 100644
--- a/lib/module.sh
+++ b/lib/module.sh
@@ -194,10 +194,10 @@ load_module() {
         done <<<"$external_output"
     fi
 
-    if ((${#LWBS_MODULE_CAPABILITIES[@]} == 0 &&
+    if ((${#LWBS_MODULE_CAPABILITIES[@]} == 0 && \
         ${#LWBS_MODULE_EXTERNAL_INSTALLERS[@]} == 0)) &&
-        ! declare -F module_apply >/dev/null 2>&1 &&
-        ! declare -F module_verify >/dev/null 2>&1; then
+            ! declare -F module_apply >/dev/null 2>&1 &&
+            ! declare -F module_verify >/dev/null 2>&1; then
 
         printf 'Error: module %s does not declare any actions.\n' \
             "$requested_module" >&2
@@ -390,4 +390,4 @@ reset_module_contract() {
     LWBS_MODULE_PATH=""
     LWBS_MODULE_CAPABILITIES=()
     LWBS_MODULE_EXTERNAL_INSTALLERS=()
-}
\ No newline at end of file
+}
diff --git a/lib/plan.sh b/lib/plan.sh
index 2cd54f4..5bd52ce 100644
--- a/lib/plan.sh
+++ b/lib/plan.sh
@@ -308,8 +308,8 @@ show_execution_plan() {
 }
 
 execution_plan_has_changes() {
-    ((LWBS_PLAN_INSTALL_ACTION_COUNT > 0 ||
-        LWBS_PLAN_CUSTOM_ACTION_COUNT > 0))
+    ((LWBS_PLAN_INSTALL_ACTION_COUNT > 0 || \
+    LWBS_PLAN_CUSTOM_ACTION_COUNT > 0))
 }
 
 execute_planned_packages() {
@@ -890,4 +890,4 @@ reset_execution_plan() {
     LWBS_PLAN_EXTERNAL_ACTIONS=()
     LWBS_PLAN_MODULE_HAS_APPLY=()
     LWBS_PLAN_MODULE_HAS_VERIFY=()
-}
\ No newline at end of file
+}
diff --git a/lib/profile.sh b/lib/profile.sh
index 0dfe208..dbce30c 100644
--- a/lib/profile.sh
+++ b/lib/profile.sh
@@ -235,4 +235,4 @@ reset_profile_contract() {
     LWBS_PROFILE_DESCRIPTION=""
     LWBS_PROFILE_PATH=""
     LWBS_PROFILE_MODULES=()
-}
\ No newline at end of file
+}
diff --git a/lib/testlib.sh b/lib/testlib.sh
deleted file mode 100644
index 9d9c8c8..0000000
--- a/lib/testlib.sh
+++ /dev/null
@@ -1,130 +0,0 @@
-#!/usr/bin/env bash
-
-# Linux Workstation Bootstrap
-# Author: David Kariuki
-#
-# Minimal test harness used by the repository test suite.
-#
-# The harness intentionally depends only on Bash so the core test suite can
-# run locally and in CI without installing a separate testing framework.
-
-LWBS_TEST_COUNT=0
-LWBS_TEST_FAILURE_COUNT=0
-
-# Execute one test function in an isolated subshell.
-run_test() {
-    local test_name="${1:-}"
-    local test_function="${2:-}"
-
-    if [[ -z "$test_name" || -z "$test_function" ]]; then
-        printf 'Error: run_test requires a name and test function.\n' >&2
-        return 2
-    fi
-
-    ((LWBS_TEST_COUNT += 1))
-
-    printf 'TEST: %s\n' "$test_name"
-
-    if (
-        set -Eeuo pipefail
-        "$test_function"
-    ); then
-        printf 'PASS: %s\n\n' "$test_name"
-        return 0
-    fi
-
-    ((LWBS_TEST_FAILURE_COUNT += 1))
-
-    printf 'FAIL: %s\n\n' "$test_name"
-
-    return 0
-}
-
-# Assert that two values are exactly equal.
-assert_equal() {
-    local expected="${1-}"
-    local actual="${2-}"
-    local message="${3:-values are not equal}"
-
-    if [[ "$expected" == "$actual" ]]; then
-        return 0
-    fi
-
-    printf 'Assertion failed: %s\n' "$message" >&2
-    printf '  Expected: %q\n' "$expected" >&2
-    printf '  Actual  : %q\n' "$actual" >&2
-
-    return 1
-}
-
-# Assert that one string contains another string.
-assert_contains() {
-    local haystack="${1-}"
-    local needle="${2-}"
-    local message="${3:-expected text was not found}"
-
-    if [[ "$haystack" == *"$needle"* ]]; then
-        return 0
-    fi
-
-    printf 'Assertion failed: %s\n' "$message" >&2
-    printf '  Expected to contain: %q\n' "$needle" >&2
-    printf '  Actual             : %q\n' "$haystack" >&2
-
-    return 1
-}
-
-# Assert that a filesystem path does not exist.
-assert_not_exists() {
-    local path="${1:-}"
-    local message="${2:-path unexpectedly exists}"
-
-    if [[ ! -e "$path" ]]; then
-        return 0
-    fi
-
-    printf 'Assertion failed: %s\n' "$message" >&2
-    printf '  Path: %s\n' "$path" >&2
-
-    return 1
-}
-
-# Create an isolated temporary directory for one test.
-make_test_temp_dir() {
-    mktemp -d "${TMPDIR:-/tmp}/lwbs-test.XXXXXX"
-}
-
-# Initialize logging beneath an isolated test directory.
-setup_test_logging() {
-    local test_directory="${1:-}"
-
-    if [[ -z "$test_directory" ]]; then
-        printf 'Error: setup_test_logging requires a test directory.\n' >&2
-        return 2
-    fi
-
-    export XDG_STATE_HOME="$test_directory/state"
-    export HOME="$test_directory/home"
-
-    mkdir -p -- "$HOME"
-
-    init_logging
-}
-
-# Print the result for the current test file.
-finish_tests() {
-    local passed_count
-
-    passed_count=$((LWBS_TEST_COUNT - LWBS_TEST_FAILURE_COUNT))
-
-    printf 'Tests: %d | Passed: %d | Failed: %d\n' \
-        "$LWBS_TEST_COUNT" \
-        "$passed_count" \
-        "$LWBS_TEST_FAILURE_COUNT"
-
-    if ((LWBS_TEST_FAILURE_COUNT > 0)); then
-        return 1
-    fi
-
-    return 0
-}
\ No newline at end of file
diff --git a/lib/ui.sh b/lib/ui.sh
index 156d720..f4fbc05 100755
--- a/lib/ui.sh
+++ b/lib/ui.sh
@@ -142,7 +142,7 @@ choose_distro_profile() {
         if [[ "$choice" =~ ^[0-9]+$ ]]; then
             selected_index=$((10#$choice - 1))
 
-            if ((selected_index >= 0 &&
+            if ((selected_index >= 0 && \
                 selected_index < ${#LWBS_SUPPORTED_DISTROS[@]})); then
 
                 SELECTED_DISTRO_PROFILE="${LWBS_SUPPORTED_DISTROS[$selected_index]}"
@@ -217,4 +217,4 @@ EOF
 
 show_version() {
     printf '%s %s\n' "$LWBS_APP_NAME" "$LWBS_VERSION"
-}
\ No newline at end of file
+}
diff --git a/lib/verification.sh b/lib/verification.sh
index 084dfcb..717e8e4 100644
--- a/lib/verification.sh
+++ b/lib/verification.sh
@@ -61,8 +61,7 @@ record_execution_result() {
     fi
 
     case "$status" in
-        successful | skipped | failed | unverifiable)
-            ;;
+        successful | skipped | failed | unverifiable) ;;
         *)
             printf 'Error: invalid execution result status: %s\n' \
                 "$status" >&2
@@ -188,4 +187,4 @@ show_execution_summary() {
 # Return success when no required verification failure was recorded.
 execution_results_are_successful() {
     ((LWBS_RESULT_FAILED_COUNT == 0))
-}
\ No newline at end of file
+}
diff --git a/tests/run.sh b/tests/run.sh
index 5f1d946..351f3a7 100644
--- a/tests/run.sh
+++ b/tests/run.sh
@@ -42,4 +42,4 @@ if ((failed_files > 0)); then
     exit 1
 fi
 
-printf 'Test suite passed.\n'
\ No newline at end of file
+printf 'Test suite passed.\n'
diff --git a/tests/test_arguments.sh b/tests/test_arguments.sh
index d2fbdc1..6ec922f 100644
--- a/tests/test_arguments.sh
+++ b/tests/test_arguments.sh
@@ -114,4 +114,4 @@ run_test \
     "reject positional arguments" \
     test_positional_argument_fails
 
-finish_tests
\ No newline at end of file
+finish_tests
diff --git a/tests/test_config.sh b/tests/test_config.sh
index 222fd6d..c621666 100644
--- a/tests/test_config.sh
+++ b/tests/test_config.sh
@@ -190,4 +190,4 @@ run_test \
     "parse user configuration as data rather than shell code" \
     test_config_is_not_executed
 
-finish_tests
\ No newline at end of file
+finish_tests
diff --git a/tests/test_core.sh b/tests/test_core.sh
index 8eee470..2741a35 100644
--- a/tests/test_core.sh
+++ b/tests/test_core.sh
@@ -101,4 +101,4 @@ run_test \
     "reject non-Linux runtime" \
     test_runtime_rejects_non_linux
 
-finish_tests
\ No newline at end of file
+finish_tests
diff --git a/tests/test_detection.sh b/tests/test_detection.sh
index 906b420..81c8f86 100644
--- a/tests/test_detection.sh
+++ b/tests/test_detection.sh
@@ -116,4 +116,4 @@ run_test \
     "reject an unreadable os-release source" \
     test_missing_os_release_fails
 
-finish_tests
\ No newline at end of file
+finish_tests
diff --git a/tests/test_distro.sh b/tests/test_distro.sh
index 9ae3caf..55ca678 100644
--- a/tests/test_distro.sh
+++ b/tests/test_distro.sh
@@ -250,4 +250,4 @@ run_test \
     "keep local package installation safe in dry-run" \
     test_local_package_install_is_safe_in_dry_run
 
-finish_tests
\ No newline at end of file
+finish_tests
diff --git a/tests/test_execution.sh b/tests/test_execution.sh
index 11bcdf1..464381b 100644
--- a/tests/test_execution.sh
+++ b/tests/test_execution.sh
@@ -138,4 +138,4 @@ run_test \
     "reject empty command execution requests" \
     test_execution_requires_command
 
-finish_tests
\ No newline at end of file
+finish_tests
diff --git a/tests/testlib.sh b/tests/testlib.sh
index c9fcfee..a6d9afa 100644
--- a/tests/testlib.sh
+++ b/tests/testlib.sh
@@ -145,4 +145,4 @@ finish_tests() {
     fi
 
     return 0
-}
\ No newline at end of file
+}