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 # GHC WebAssembly Backend Demonstration - ZuriHac 2024
 
-Credits:
+At ZuriHac 2024, [Jane Street](https://www.janestreet.com/) was giving out
+shirts with the following prompt on the back:
+
+![shirt prompt](./assets/shirt.png)
+
+I was looking to do something with [GHC's WebAssembly (wasm)
+backend](https://ghc.gitlab.haskell.org/ghc/doc/users_guide/wasm.html), so I
+decided to solve the problem above using a WebAssembly simulation in the
+browser.
+
+Here it is in action:
+
+![demo gif](./assets/gif.gif)
+
+All of the logic for this simulation is written in Haskell and compiled to wasm,
+including:
+
+- Concurrent execution of each simulation
+- Mutex protecting the HTML canvas rendering context
+- Randomness using the [random](https://hackage.haskell.org/package/random)
+  package
+
+No libraries were used for interacting with the DOM, just raw JavaScript FFI
+through the wasm backend.
+
+## Build it and try it yourself
+
+The [ghc-wasm-meta](https://gitlab.haskell.org/ghc/ghc-wasm-meta) README is a
+good resource for setting up a wasm cross compilation toolchain. The GHC team
+does supply official distributions of wasm cross compilers for Linux, but not
+other platforms (yet). On other platforms (e.g. macOS), you will need to build a
+cross compiler from source.
+
+Once you have a toolchain set up, you can simply run the `./build.sh` file in
+this repository and serve the `dist` directory on a local file server.
+
+## Credits:
+
 - Finley McIlwaine (author)
-- Andreas Klebinger (@AndreasPK)
-- Zubin Duggal (@wz1000)
+- Andreas Klebinger ([@wz1000](https://github.com/AndreasPK))
+- Zubin Duggal ([@wz1000](https://github.com/wz1000))
+- [ZuriHac 2024](https://zfoh.ch/zurihac2024/)
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