http://l3tczdiiwoo63iwxty4lhs6p7eaxop5micbn7vbliydgv63x5zrrrfyd.onion/developer-manual/documentation.html
You will need Docbook , the Docbook DTD's and the Docbook modular stylesheets (or comparable alternatives), and either jade or openjade (recommended) installed in order
to build docs from source. Currently there is user-manual , FAQ , and,
of course this, the developer-manual in this format.