---
name: "tech-rust-wasm-when"
title: "When Rust WASM is worth it"
description: "WASM usually wins only when the TS path is >~1ms hot work"
type: "tech"
category: "web"
tags: ["tech", "web", "rust", "wasm"]
related: ["[[tech-wasm-prerender-ci]]", "[[user-duyet-lang-rust]]", "[[project-monorepo]]"]
---
Prefer TypeScript for most UI/data shaping. Use Rust→WASM when profiling shows >~1ms hot paths.

CI trap: [[tech-wasm-prerender-ci]]. Language context: [[user-duyet-lang-rust]].