any good way of determining what ought to be produced.
This needs adjustment, orders tell you what to produce, and how much.
No orders, find other work.
Too much work, find other workers/build more factories.
This causes me to suspect that blockchain technology could be used to establish consensus regarding the allocation of resources and distribution on a communistic basis.
Well, that, or maybe all the distributors know each other and communicate.
With 'sufficient for all' the goal, the means will work themselves out as a matter of course.
If we make 'want of anything' the goal delivery times may vary, but it would not be impossible to meet all demand.