Wasm Component Composition: A New Era of Language Interoperability

Thorsten Hans - Fermyon / Karthik Ganeshram - Fermyon

Explore the future of polyglot development with the WebAssembly Component Model, enabling seamless language interoperability without FFI hurdles. Join Karthik and Thorsten to discover a 2025 developer experience, powered by Spin’s Component Composition, where language barriers will be gone.

In this talk, we will show the audience how they could:

• Compose applications from multiple Wasm Components with ease
• Build applications using multiple programming languages
• Use tools like Spin, to offload composition for streamlining their DX

Attendees could expect:

• A short introduction into the topic (to lay the foundation)
• End-to-End demonstration for composing applications from multiple Wasm Components
• Dive into Spin’s implementation to understand how Spin does all of it!