Gentoo

 Deb and rpm package system instead of using the tar.gz source code is very rich in the gentoo program.

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Installation is difficult for those who are familiar with deployments using the package system, the installation of programs is very slow. And the stability of distribution is problematic.

  Sabayon

He's using the Gentoo infrastructure. Installation is simplified. They have rich and detailed programs. But the installation of new packages is still very slow and the system is still weak.