https://www.pistack.xyz/tags/wasi/ Recent content in Wasi on Pi Stack Hugo en-us Sat, 24 Oct 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-10-24-wasm-tools-wit-bindgen-wac-component-model-guide/ Sat, 24 Oct 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-10-24-wasm-tools-wit-bindgen-wac-component-model-guide/ <p>WebAssembly&rsquo;s component model stopped being a research demo somewhere in 2025. The problem is that the documentation never caught up: a newcomer runs <code>cargo build --target wasm32-unknown-unknown</code>, ships a <code>.wasm</code> file, and discovers that nobody can call it — because it exports a memory blob, not a typed interface. The gap between &ldquo;a Wasm module exists&rdquo; and &ldquo;a component with a versioned interface that a host can link&rdquo; is exactly where three command-line tools live: <strong><code>wasm-tools</code></strong>, <strong><code>wit-bindgen</code></strong>, and <strong><code>wac</code></strong>.</p>