Best of WebAssembly — June 2025

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   Article

   Fermyon·42w

   Why We Chose Rust For Spin

   Fermyon explains their decision to build Spin, an open-source serverless WebAssembly framework, using Rust. The choice was driven by Rust's synergy with the wasmtime runtime, its powerful tooling ecosystem including clap and cargo workspaces, and its ability to support extensible architecture through plugins, templates, and factors. The article highlights how Rust's type system, memory safety, and developer toolchain enabled them to create a scalable, maintainable codebase while delivering an excellent developer experience.

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   Article

   Hacker News·45w

   10 years of betting on Rust

   A founder reflects on 10 years of using Rust in production, from the painful early days of version compatibility issues and compile time problems to today's mature ecosystem. Despite initial challenges with the borrow checker and tooling, Rust has evolved into a reliable choice for systems programming with exceptional community support, predictable builds, and excellent developer experience. The author discusses future improvements including faster compilation, better portability, ubiquitous const evaluation, simpler concurrency models, and expansion into new domains like web development and machine learning.

   36
3. 3
   Article

   Godot·45w

   Upcoming (serious) Web performance boost – Godot Engine

   Godot Engine now supports WebAssembly SIMD compilation, delivering significant performance improvements for web games. Benchmarks show 1.5x to 2x performance gains in normal scenarios, with even higher improvements during CPU-intensive situations. Starting with Godot 4.5 dev 5, official web templates will require SIMD-compatible browsers to maximize performance benefits, though developers can still build non-SIMD versions if needed for older browser compatibility.

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