Rakefile

local_libraries = %w(restfulx random_project_one)

local_libraries_path = '~/workspace'

# this assumes you are dealing with something with the common gem format
# my_library/
# my_library/lib
# my_library/lib/my_library.rb
local_libraries.each do |library|
  $: << "#{local_libraries_path}/#{library}/lib"
  require library
end

# Now you'd have access to everything in there