It's been 15 years since the quote “Data is the new oil” was coined, and Jamstack is here for more than 6 years already. Yet, there's no straightforward way to build a data-intensive app with outstanding performance, low costs, and scalability while having great developer experience. Oh, really? In this talk, I'll show how you can build a lightning-fast Jamstack app that works with massive loads of data with open-source tools and having lots of fun.