A simple WebAssembly module that uses JavaScriptKit to manipulate the DOM, built with SwiftPM in Embedded Swift mode. Inspired by Simon Leeb, Web App with Embedded Swift - POC demo (2024-10-20).

As of 2025-01, you need a current Swift development toolchain to build this, at least on macOS. To run this, build the Wasm binary with make wasmlib, then start a local web server with make server.

The build steps are documented in the Makefile. You’ll probably have to modify them if:

• You’re not on macOS, or
• You are on macOS, but your installed Swift toolchain is not in ~/Library/Developer/Toolchain/swift-latest.xctoolchain, or
• You don’t have Python installed (used to start a local web server) or you want to use another tool to run a local web server.

This is the resulting web page in the browser: