Provides reusable Bash functions (`install_package`, `uninstall_package`, `show_progress`) used by all install sub-scripts. It standardizes package installation via pacman or AUR helpers, logs output, and displays animated progress indicators. This module is self-contained (no internal imports beyond color variables) and could be extracted into any Bash-based system deployment project with minimal modification.

A self-contained installer script that sets up a battery level monitoring daemon. It installs `acpi` and `libnotify`, generates a monitoring Bash script, creates a systemd user service, and enables it. The generated monitor script uses configurable thresholds (LOW=20%, CRITICAL=10%) and debounces notifications to avoid spam. This pattern is directly reusable for any Linux distribution with systemd and can be easily adapted for other monitoring tasks (e.g., CPU temperature, disk space).

An interactive uninstaller that uses whiptail to let users select specific packages and configuration directories to remove. It implements retry logic for package removal, confirms twice before action, and logs all operations. The separation of package and directory listing into arrays with metadata, plus the modular `remove_packages` and `remove_directories` functions, makes this a clean template for crafting guided removal tools for other software stacks.