GEM remote: https://rubygems.org/ specs: base64 (0.2.0) chunky_png (1.4.0) json (2.7.1) mustermann (3.0.0) ruby2_keywords (~> 0.0.1) pdf-core (0.9.0) prawn (2.4.0) pdf-core (~> 0.9.0) ttfunk (~> 1.7) prawn-qrcode (0.5.2) prawn (>= 1) rqrcode (>= 1.0.0) rack (2.2.8) rack-protection (3.2.0) base64 (>= 0.1.0) rack (~> 2.2, >= 2.2.4) rqrcode (2.2.0) chunky_png (~> 1.0) rqrcode_core (~> 1.0) rqrcode_core (1.2.0) ruby2_keywords (0.0.5) sinatra (3.2.0) mustermann (~> 3.0) rack (~> 2.2, >= 2.2.4) rack-protection (= 3.2.0) tilt (~> 2.0) tilt (2.3.0) ttfunk (1.7.0) webrick (1.8.1) PLATFORMS ruby DEPENDENCIES json prawn prawn-qrcode sinatra webrick BUNDLED WITH 2.2.22