At the beginning of the 5xx series, the paradigm shifted to Puppy being built from and compatible with packages from other distros. Although, compatibility hasn't always been 100%.

Thus it satisfied various user needs for access to the package repository of a major distribution, while retaining the Puppy minimalist philosophy, usability and speed. Two options where created, Precise (Ubuntu compatible) maintained by BarryK and Slacko (5.3+, Slackware compatible) maintained by Micko and the community.

There is also the older, now nonofficial, Lucid Puppy (5.2.8.7, Ubuntu compatible) maintained by RErwin but whose lead developer (5.0 - 5.29) was Playdayz.

PrecisePuppy - Ubuntu compatible maintained by BarryK

Slacko - Slackware maintained by Micko and the community

Lucid - older Ubuntu compatible, developed by Playdayz and maintained by RErwin.

Spup - Slackware compatible index

Upup - Ubuntu compatible index

PuppyTimeLine Puppy Time Line