In the context of multimedia streaming over HTTP, HLS seems to be the most widely adopted solution for a wide range of applications. Its support spreads across a variety of devices and software products, making it the ideal choice for a service aimed at a large customer base. A diverse set of closed-source media servers are available for this use case, but unfortunately we can't say the same for open source alternatives. The most popular tool in this space, a module for the nginx server called nginx-rtmp, handles just the basic functionalities of the HLS protocol. The aim of this work has been to extend its capabilities with the support of real-time metadata.