docs: private Blob processBlob(File blobFile) {
  		logger.trace("processing blob {}", blobFile);
  
  		try {
  			Blob blob = new Blob(Compressor.GZIP, new FileInputStream(blobFile), blobFile.length());
  			String id = writingRepository.store(blob);
  			logger.info("added blob {} -> {}", blobFile, id);
  
  			return blob;
  		} catch (IOException e) {
  			throw new RuntimeException(e);
  		}
  	}