FASTLIB provides a method to encode large directories of libraries into a single archive file. This is similar to capabilities like zip/ziprequire, except that it provides workarounds for __FILE__ references, arbitrary compression, and arbitrary encoding of file and name contents.
$ apt-get install fastlib
$ `gem env gemdir`/gems/fastlib-*/lib/fastlib.rb dump lib/myarchive.fastlib lib/ lib/*
$ ruby -r rubygems -r fastlib -I lib/myarchive.fastlib application.rb