Language Models and GenAI are extremely powerful tools, but they can only play their strengths when they have access to your data. Getting a demo application running is a matter of hours, but there are no clear patterns for how to productionize these demos. In this talk, Joe Reuter talks about how to apply lessons learned from a decade of data engineering to the new world of GenAI and introduces the ELTP (Extract-Load-Transform-Publish) model as a general guiding principle.