def dependencies
      gemspec.dependencies.map(&:name).
                           select { |dep| dep =~ /\A#{Wagons.app_name}_/ }.
                           map { |dep| Wagons.find(dep) || fail("No wagon #{dep} found") }
    end
def dependencies
      gemspec.dependencies.map(&:name).
                           select { |dep| dep =~ /\A#{Wagons.app_name}_/ }.
                           map { |dep| Wagons.find(dep) || fail("No wagon #{dep} found") }
    end
Direct dependencies on other wagons.