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+Sandbox is a library (and helper utility) to run programs in a
+"sandboxed" environment. This is used as a QA measure to try and
+prevent applications from modifying files they should not.
+
+For example, in the Gentoo world we use it so we can build applications
+as root and make sure that the build system does not do crazy things
+outside of its build directory. Such as install files to the live root
+file system or modify config files on the fly.
+
+For people who are familiar with the Debian "fakeroot" project or the
+RPM based "InstallWatch", sandbox is in the same vein of projects.