daemontools - http://cr.yp.to/daemontools.html
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D. J. Bernstein's daemontools - a collection of tools for managing
UNIX services the same way across all UNIX platforms. May be useful to
set up one-time run of bcfg2 client at startup, or to run ostiary.

epkg - http://www.encap.org/epkg
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Mark D. Roth's epkg - an encap pacakage manager. Needed to build the
*.ep and *.sh files, although in most cases epkg binaries for your
platform will already exist.

ostiary - http://ingles.homeunix.org/software/ost
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Ray Ingles' ostiary - simple, secure remote script execution.  May be
useful if you like/are used to being able to kick off a config update
on a config client from a config server, like with cfengine.