Gentoo for Pandora simply takes a base stage3-equivalent image with a default ARM profile and default system packages, and provides "variations" based off of that image. For example, one possible variation might be "minimal", in which man pages, info pages, extra compiled Python files, and other unnecessary items are trimmed from the default install. Another might be "desktop", in which all the default features are left alone, and more are added to provide a complete user-friendly desktop-like experience.