This exactly. I think part of the problem is that each of these projects has a corporate backer, Monetas, sponsoring Open Transaction is building a business around the platform. There is some incentive to keep the best doco closed source. There is a slim to none chance that the only documentation Monetas is using is available publicly. I spent some time setting up an opentransactions server, but could never spend enough time/research to get a production server up.