anchor.diff:  
   
   REM 
  -REM  shadow  
  +REM  shadow  (to do: be sure that continue...)
   REM 
   
   git clone https://github.com/panosc-vinyl/shadow3
  
positive.code: pip install wofryshadow --no-deps
  
  git clone https://github.com/panosc-vinyl/shadowOui
  cd vinyl/shadowOui
  pip install . --no-deps
  cd ..
  
  
negative.code: 
  
  REM 
  REM  install xraylib (to do: answer yes)
  REM 
  
  conda install -c conda-forge xraylib=3.3.0
  