Scalability Layer refers to additional frameworks or solutions implemented to enhance the transaction capacity and efficiency of a blockchain network. As the number of users and transactions grows, networks can face congestion, leading to slower processing times and higher fees. A Scalability Layer addresses this issue by allowing for increased throughput. Examples include sidechains, layer-2 solutions like the Lightning Network, and sharding. These methods enable faster transactions by processing them outside of the main chain while still maintaining a connection to it.Implementing a Scalability Layer can significantly improve user experience by allowing for quicker and cheaper transactions. This is essential for larger adoption and usability, particularly for decentralized applications and financial services. By ensuring that the network can handle more users and transactions without sacrificing performance, the Scalability Layer plays a vital role in the overall growth and sustainability of blockchain technology.