source "https://rubygems.org" gemspec gem "twenty-cli", path: "./twenty-cli" gem "twenty-backend", path: "./twenty-backend" gem "twenty-frontend", path: "./twenty-frontend" require 'rbconfig' gem "listen" case RbConfig::CONFIG['target_os'] when /(?i-mx:bsd|dragonfly)/ gem 'rb-kqueue', '>= 0.2' else # Poll end