Spin
Spin is an open-source framework for building, deploying, and running serverless WebAssembly (Wasm) applications, primarily for cloud and edge computing. It provides a developer-friendly environment with a CLI tool and SDKs to create fast, secure, and portable microservices or functions that execute in lightweight Wasm runtimes. It is developed by Fermyon Technologies and integrates with platforms like Kubernetes and cloud services.
Developers should learn Spin when building serverless applications that require high performance, low latency, and security, especially for edge computing or microservices architectures. It is ideal for use cases like API backends, data processing, and IoT applications where WebAssembly's sandboxed execution and cross-platform portability offer advantages over traditional containers or VMs. Its tooling simplifies Wasm development, making it accessible for teams adopting modern cloud-native practices.