--- title: Nix as a WebAssembly build tool | daily.dev description: Using Nix as a build tool for WebAssembly addresses the complexity of Wasm toolchains, which span multiple languages, runtimes, and utilities. A practical... canonical: https://daily.dev/posts/nix-as-a-webassembly-build-tool-o5zfgjbnl twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Nix as a WebAssembly build tool | daily.dev og:description: Using Nix as a build tool for WebAssembly addresses the complexity of Wasm toolchains, which span multiple languages, runtimes, and utilities. A practical... og:url: https://daily.dev/posts/nix-as-a-webassembly-build-tool-o5zfgjbnl og:image: https://api.daily.dev/og/posts/o5ZFGJBnL.png og:image:alt: Nix as a WebAssembly build tool og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Nix as a WebAssembly build tool **[Determinate Systems](https://daily.dev/sources/determinate-systems)** · 5 min read · 0 upvotes · 0 comments ## Summary Using Nix as a build tool for WebAssembly addresses the complexity of Wasm toolchains, which span multiple languages, runtimes, and utilities. A practical example project compiles a Rust program to WASI-compliant Wasm using a custom Nix function wrapping Naersk's buildPackage. The approach produces a full Wasm package including the binary, objdump metadata, stats, and a human-readable WAT file — all built deterministically. Nix also enables wrapping Wasm binaries as CLI tools by bundling runtimes like Wasmtime or WasmEdge via makeWrapper, eliminating the need for apt-get or Homebrew. The post argues Nix is better suited than Makefiles or Bash for Wasm packaging and would remain relevant even in a world that has moved beyond containers and VMs. ## Full article daily.dev links to this article rather than hosting it. 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Here’s how it works](https://daily.dev/posts/webassembly-is-everywhere-here-s-how-it-works-d8uxjessm) · The New Stack · 2 upvotes · 0 comments --- Tags: [#webdev](https://daily.dev/tags/webdev), [#rust](https://daily.dev/tags/rust), [#webassembly](https://daily.dev/tags/webassembly) [View this post on daily.dev](https://daily.dev/posts/nix-as-a-webassembly-build-tool-o5zfgjbnl) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Nix as a WebAssembly build tool","url":"https://daily.dev/posts/nix-as-a-webassembly-build-tool-o5zfgjbnl","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/nix-as-a-webassembly-build-tool-o5zfgjbnl"},"datePublished":"2026-07-26T07:48:38.154Z","dateModified":"2026-07-26T07:51:01.946Z","description":"Using Nix as a build tool for WebAssembly addresses the complexity of Wasm toolchains, which span multiple languages, runtimes, and utilities. 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