PCLinuxOS is a Independent-family Linux distribution based on Mandriva. A fiercely independent rolling release with classic SysVinit, APT-RPM, and zero systemd.
Strengths: True rolling release that has run without systemd for over a decade; MyLiveCD tool lets you turn your running personal system into a bootable ISO backup; Synaptic package manager provides friendly package searching. Trade-offs: Unconventional package manager pairing (APT with RPM).