Building WebAssembly Like It's 2011 - David Justice, Microsoft & Terence Lee, Heroku/Salesforce

David Justice, Microsoft, Terence Lee, Heroku/Salesforce

KubeCon + CloudNativeCon Europe 2025 · Session

This talk, "Building WebAssembly Like It's 2011," delivered by David Justice of Microsoft and Terence Lee of Heroku/Salesforce at KubeCon EU, delves into the challenges of building and composing WebAssembly (Wasm) components and proposes a solution rooted in a decade-old, proven technology: **Cloud Native Buildpacks**. The speakers highlight the current complexity of the Wasm development experience, particularly when combining multiple languages and components, and demonstrate how a streamlined build process can significantly enhance developer productivity, mirroring the transformative impact Buildpacks had on polyglot application development in the early 2010s.

AI review

This talk masterfully applies the proven elegance of Cloud Native Buildpacks to the complex, nascent world of WebAssembly Component Model builds. It provides a pragmatic, open-source solution to the "gnarly recipe" currently plaguing polyglot Wasm development, drastically simplifying the build process. The resulting lean, secure OCI artifacts and the strong defensive implications make this a critical step forward for Wasm adoption in cloud-native environments, offering a clear path to standardized, efficient, and secure component composition.

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