Sabayon Linux relied on two
package managers.
Portage was inherited from Gentoo, while Entropy was developed for Sabayon by Fabio Erculiani and others. Portage downloaded
source-code and compiled it specifically for the target system, whereas Entropy managed binary files from servers. The binary
tarball packages were precompiled using the
Gentoo Linux unstable tree. Entropy clients then pulled these tarballs and performed the various post- and pre-compilation calls of the Gentoo
ebuild to set up a package correctly. This means the system was completely binary-compatible with a Gentoo system using the same build configuration. The adoption of two package managers allowed expert users to access the full flexibility of the Gentoo system and others to easily and quickly manage software applications and updates. The Entropy software featured the ability of allowing users to help generate relevant content by voting and by attaching images, files and web links to a package. The Rigo application browser was a
GUI front-end to Entropy that was the successor to Sulfur (aka Entropy Store). Taking on a "less is more" approach, Rigo was designed to be simple and fast. During an interview with Fabio Erculiani he described Rigo as a ”Google-like” Applications Management UI. Rigo handled system updates, package searching, install/removal of packages, up/down voting of packages, and many other common Entropy tasks. ==Applications==