An example config.ru file for dynamically adding CIJoe projects, just place this at the root of your folder structure

config.ru

# Required so that we can set path correctly for Config, which 
# is loaded statically due to a bug in cijoe
require 'cijoe'

# setup middleware
use Rack::CommonLogger

# Assume all subfolders under config.ru are git repos and collect them to spin up multiple joes
projects = Dir.glob("*/")

# configure joe per project
projects.each do |project|
  project_path = Dir.pwd + "/" + project
  map "/#{project}" do

    run CIJoe::Server.rack_start(project_path)
  end
end