[Raziarazzi]

To keep things simple, I'll only keep three data sources: products, news, and technical data. Three unrelated data sources are sufficient to highlight the problem. I'm using Python and Flask in the demo, but the underlying technology is unimportant because BFF is an architectural pattern. The starting point is a monolith. The monolith provides an endpoint for each data source as well as a unified aggregation endpoint for all of them.