aqtinstall: Unofficial Qt Installer

aqtinstall is a Python library and command-line tool for installing specific versions of Qt, Qt tools, and add-ons directly from Qt's official servers. It provides an unofficial, robust, and programmatic way to manage Qt installations, particularly useful in CI/CD environments. The current version is 3.3.0, and it generally follows a monthly or bi-monthly release cadence for minor updates and bug fixes.