Pippy Linux compatible with Slackware.
It was released in March of this year, 2013.
Barry Kauler has announced the release of Puppy Linux 5.5 "Slacko" edition, a small and fast distribution built from and compatible with Slackware's binary packages.
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Source:
http://distrowatch.com/?newsid=07741What his means is you could put Puppy and Slackware programs on a small USB stick and have room left over. Puppy itself is under 200MB.
