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...Erlang/OTP is available as pre-built binary packages by most OS package managers. You can use Kerl, a script that lets you easily build Erlang with a few commands. We take security bugs in Erlang/OTP seriously. The Erlang distribution includes a step-by-step getting started guide.
This is a tool for managing changes to database schemas based on Active Record migrations. Features multiple schema interactions, runtime variable substitution, script creation, and much more. Visit http://migrations.sourceforge.net for more information.