streams of operations on dir structures. the zx.rfs package includes the details.
the important part is the interfaces or how it can be used, as shown in the examples.

> El May 23, 2014, a las 11:26 PM, Oleksandr Iakovliev <yshurik@lynxline.com> escribió:
> 
>> On 2014-05-23 13:54 , Francisco J Ballesteros wrote:
>> and includes its new weird file protocol, named zx.
> 
> Not sure I have seen some info about "zx". What is the protocol?