merge-stream efficiently merges multiple streams into a single, cohesive stream. It consumes data from all input streams concurrently, emitting the results in a unified flow. This is particularly useful for tasks requiring parallel processing or combining data sources. merge-stream simplifies asynchronous data manipulation, enabling developers to construct complex pipelines with ease. This package handles backpressure appropriately, ensuring stability when merging streams with varying data rates. Offers greater control than alternative method concat.