blendOS
blendOS is an Arch Linux-based, rolling-release distribution which automates installing software from supported distributions (Arch Linux, Fedora and Ubuntu) into containers. blendOS tries to make software management in across containers feel native and provides access to the user's home directory for each container.
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Tiny Core Linux
Tiny Core Linux is a 16 MB graphical Linux desktop. It is based on a recent Linux kernel, BusyBox, Tiny X, Fltk, and Flwm.