they don't expect the work to be done solely by volunteers, and are going to ask for donations on their website. it's laid out in the first paragraphs:
The task is huge and it's unlikely that it will be
completed shortly based only on volunteer work, so we
came up with the following proposal, which splits the
work into several steps and sub-steps, togheter with an
estimate of how much money is needed to complete each
one.
