Matt Klein, a software engineer at Lyft and creator of the open-source project Envoy, shares insights from his career and views on technology trends in a recent Q&A. Envoy, a service proxy for cloud-native applications, is notable for its successful community-driven development, paralleling the challenges faced by startups in terms of building a supportive and functional community. Klein highlights his admiration for the Windows NT kernel as a standout project in terms of software quality and emphasizes the importance of community ethos in open-source projects. He discusses the promising potential of Rust as a programming language and reflects on Envoy's API longevity and the complexities of transitioning between its versions. Klein also explores the early-stage development of WebAssembly and the evolving landscape of service meshes, suggesting a shift toward platform-based solutions that abstract away underlying technologies like Kubernetes and Envoy. He expresses interest in projects like Dapr, which aim to simplify cloud-native application development by providing standardized APIs, and envisions a future where these technologies become invisible implementation details.