Install some dependencies: apt-get install build-essential librsvg2-dev libcairo2-dev \ libfreetype6-dev yasm libjpeg62-turbo-dev swig Be sure FFmpeg is installed, preferably from source. Install rvm; rvm install 1.9.2; rvm --default use 1.9.2 gem install --pre patchbay gem install thin gem install trollop Install v8 - compile from the source: https://code.google.com/p/v8-wiki/wiki/BuildingWithGYP and build as a shared library Install libjpeg_turbo! libjpeg62-dev on Debian jessie is libjpeg-turbo as of 12/2/2015. Quick start guide to make up for very incomplete documentation: make replay/replay.so input/input.so cd replay mv replay_config.rb.example replay_config.rb vim replay_config.rb # set up your sources vim replay_server.rb # search for create_decklink_output_adapter, change 7 # to the card number you want to use for output ruby replay_server.rb # make sure your ShuttlePRO controller is plugged in; # also make sure your console is at 1920x1080