anchor.diff:  
   RUN make drunkenfall
   RUN make npm-dist
  +
  +CMD "./drunkenfall"
  
positive.code: COPY js/static/ ./js/static/
  COPY js/index.html ./js/
  
  COPY Caddyfile .
  COPY Makefile .
  
  COPY websockets/ ./websockets/
  COPY towerfall/ ./towerfall/
  COPY js/src ./js/src/
  COPY *.go ./
  
negative.code: 
  ENV DF_ROOT=/go/src/github.com/drunkenfall/drunkenfall/
  WORKDIR $DF_ROOT
  
  RUN mkdir ./logs
  
  # I hate everything.
  RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
  