Hortonworks has MiNiFi C++ https://github.com/apache/nifi-minifi-cpp it is native implementation of MiNiFi, we compile under linux, OS X, Raspberry PI. Please see the README.md for system requirement for the same. As for as QNX support, if QNX development environment have a cross compiler/packages which meet the above system requirements, porting the MiNiFi should be feasible and not a big task to accomplish. ... View more