Hi, DataTorrent, the initial contributor to Apex and the company I work for, has opened up a library of operators called Megh recently to the public and has made the repository available under the Apache License. The link to the repository is below. These operators, for the most part, contain functionality that is complementary to what Malhar library provides and were developed to solve business use cases that arose over time. Also, some operators in Malhar were inspired from early implementations in the Megh library and were built upon knowledge gained in doing the original implementations.
Our goal is to not have Megh as a separate library but rather bring these operators into Malhar in a fashion that it is consistent with the Malhar project and repository. In the upcoming days, in a gradual fashion, we will have more details on the individual operators that we would like to contribute. Also, if you are interested in helping with this effort please raise your hand. https://github.com/DataTorrent/Megh/ Thanks