blendOS v3 introduces two new command line utilities, system and user, and both of these are designed to make the lives of developers much, much easier. system allows you to install packages on the host itself, such as drivers and virtualization software from the Arch Linux repositories (system install and system remove). Speaking of which, unlike quite a few other immutable distributions, blendOS supports software such as VirtualBox if installed on the host. user is a replacement for the old blend CLI (was deprecated in v2). It allows you to create and manage containers and associatiions, as well as generate and move dotfiles and containers between different blendOS machines, as touched upon in the previous section.