Zombienet is an advanced CLI tool designed to streamline the testing and deployment of ephemeral networks for Polkadot/Substrate-based blockchains. Leveraging a robust JavaScript library running on Node.js, Zombienet enables users to easily create and test network configurations through a variety of supported providers, including Kubernetes, Podman, and native environments. Its intuitive natural language interface simplifies test scripting, allowing seamless interaction with on-chain storage, metrics, and logs using custom JavaScript. While currently under active development, Zombienet’s flexibility and ease of use have positioned it as a crucial asset in various projects within the Polkadot ecosystem, offering expansive testing capabilities that ensure optimal blockchain performance and reliability.