svoid dm_sendFileToOtherMachineIfDifferent(File f, S computerID, S remotePath) {
  if (!fileExists(f)) ret;
  S remoteMD5 = dm_evalOnOtherMachine(computerID, "md5OfFile(" + quote(remotePath) + ")");
  if (eq(remoteMD5, md5OfFile(f))) ret with print("File identical: " + f);
  
  dm_sendFileToOtherMachine(f, computerID, remotePath);
}