Marco Russo announces a new set of tools:
Power BI Push Tools is a set of open-source tools to work with Power BI push datasets.
Read Implementing real-time updates in Power BI using push datasets instead of DirectQuery to learn the architecture of solutions based on push datasets and how to create and populate a push dataset starting from a regular Tabular model.
In addition to reading that linked post, click through to see the three tools which are currently available.