Slpkg is a feature-rich package manager for Slackware-based systems. It installs, upgrades, removes, and builds packages from multiple repositories, including SlackBuilds.org (SBo, Ponce) and binary repositories. Slpkg automatically resolves and tracks dependencies, maintains a full installation history with transaction rollback, detects orphaned and foreign packages, and verifies the integrity of installed files. Additional features include reverse dependency analysis, package pinning and blacklisting, security auditing, file search within package indexes, and export/import of package lists. The tool follows the standards of the SlackBuilds.org organization and Slackware Linux's official procedures for package installation, upgrades, and removal. Optional dependency: python3-pythondialog alternatives for dependency and package management.