GEM remote: https://rubygems.org/ specs: backports (3.15.0) multi_json (1.13.1) mustermann (1.0.3) rack (2.0.7) rack-protection (2.0.5) rack sinatra (2.0.5) mustermann (~> 1.0) rack (~> 2.0) rack-protection (= 2.0.5) tilt (~> 2.0) sinatra-contrib (2.0.5) backports (>= 2.8.2) multi_json mustermann (~> 1.0) rack-protection (= 2.0.5) sinatra (= 2.0.5) tilt (>= 1.3, < 3) tilt (2.0.9) PLATFORMS ruby DEPENDENCIES sinatra sinatra-contrib RUBY VERSION ruby 2.6.3p62 BUNDLED WITH 2.0.2