Replace wasm-opt in bindings dep with local version

.github/workflows/shared-build-wasm.yml

@@ -70,6 +70,13 @@ jobs:
         with:
           version: "0.2.108"
 
+      # Install wasm-opt from binaryen repository.
+      - name: Install binaryen
+        uses: sigoden/install-binary@v1
+        with:
+          repo: WebAssembly/binaryen
+          name: wasm-opt
+
       - name: Setup sccache
         uses: "./.github/actions/rust/sccache/setup"
         with:

bindings/wasm/audit_trail_wasm/README.md

@@ -62,10 +62,56 @@ const state = await trail.get();
 console.log(state.sequenceNumber);
 ```
 
-## Build
+## Build the Library
+
+Alternatively, you can build the bindings yourself if you have Rust installed. If not, refer
+to [rustup.rs](https://rustup.rs) for the installation.
+
+### Requirements
+
+- [Node.js](https://nodejs.org/en) (>= `v20`)
+- [Rust](https://www.rust-lang.org/) (>= 1.65)
+- [Cargo](https://doc.rust-lang.org/cargo/) (>= 1.65)
+- for running example: a local network node with the IOTA Audit Trails package deployed as described in [Local Network Setup](https://docs.iota.org/developer/iota-notarization/audit-trails/getting-started/local-network-setup)
+
+### 1. Install Local Tooling
+
+If you want to build the library from source you have to install additional build tools locally.
+
+#### Install `wasm-bindgen-cli`
+
+First you need to install [`wasm-bindgen-cli`](https://github.com/rustwasm/wasm-bindgen).
+A manual installation is required because we use the [Weak References](https://rustwasm.github.io/wasm-bindgen/reference/weak-references.html) feature,
+which [`wasm-pack` does not expose](https://github.com/rustwasm/wasm-pack/issues/930).
+
+```bash
+cargo install --force wasm-bindgen-cli
+```
+
+#### Install `wasm-opt`
+
+To reduce the size of the wasm package, it is optimized with `wasm-opt`, which is part of [`binaryen`](https://github.com/WebAssembly/binaryen).
+
+You can either download a [release of binaryen](https://github.com/WebAssembly/binaryen/releases) and make the bin folder available in your PATH or check if your operating system tooling offers a more convenient way of installing the binaries like APT, Homebrew, etc.
+
+Some examples:
+
+- Linux via APT: `sudo apt-get update && sudo apt-get -y install binaryen` (taken from [here](https://installati.one/install-binaryen-ubuntu-22-04/))
+- MacOS via Homebrew: `brew install binaryen` (see [Homebrew entry](https://formulae.brew.sh/formula/binaryen))
+
+### 2. Install Dependencies
+
+After installing local tooling, you can install the necessary dependencies using the following command:
 
 ```bash
 npm install
+```
+
+### 3. Build
+
+You can build the bindings for `node.js` using the following command:
+
+```bash npm2yarn
 npm run build
 ```
 

bindings/wasm/audit_trail_wasm/package.json

@@ -55,8 +55,7 @@
     "tsconfig-paths": "^4.1.0",
     "typedoc": "^0.28.5",
     "typedoc-plugin-markdown": "^4.4.1",
-    "typescript": "^5.7.3",
-    "wasm-opt": "^1.4.0"
+    "typescript": "^5.7.3"
   },
   "dependencies": {
     "@iota/iota-interaction-ts": "^0.14.0"

bindings/wasm/notarization_wasm/README.md

@@ -33,22 +33,36 @@ to [rustup.rs](https://rustup.rs) for the installation.
 - [Rust](https://www.rust-lang.org/) (>= 1.65)
 - [Cargo](https://doc.rust-lang.org/cargo/) (>= 1.65)
 - for running example: a local network node with the IOTA notarization package deployed as being described
-  [here](https://docs.iota.org/developer/iota-notarization/getting-started/local-network-setup)
+  [here](https://docs.iota.org/developer/iota-notarization/single-notarization/getting-started/local-network-setup)
 
-### 1. Install `wasm-bindgen-cli`
+### 1. Install Local Tooling
 
-If you want to build the library from source,
-you will first need to manually install [`wasm-bindgen-cli`](https://github.com/rustwasm/wasm-bindgen).
+If you want to build the library from source you have to install additional build tools locally.
+
+#### Install `wasm-bindgen-cli`
+
+First you need to install [`wasm-bindgen-cli`](https://github.com/rustwasm/wasm-bindgen).
 A manual installation is required because we use the [Weak References](https://rustwasm.github.io/wasm-bindgen/reference/weak-references.html) feature,
 which [`wasm-pack` does not expose](https://github.com/rustwasm/wasm-pack/issues/930).
 
 ```bash
 cargo install --force wasm-bindgen-cli
 ```
 
+#### Install `wasm-opt`
+
+To reduce the size of the wasm package, it is optimized with `wasm-opt`, which is part of [`binaryen`](https://github.com/WebAssembly/binaryen).
+
+You can either download a [release of binaryen](https://github.com/WebAssembly/binaryen/releases) and make the bin folder available in your PATH or check if your operating system tooling offers a more convenient way of installing the binaries like APT, Homebrew, etc.
+
+Some examples:
+
+- Linux via APT: `sudo apt-get update && sudo apt-get -y install binaryen` (taken from [here](https://installati.one/install-binaryen-ubuntu-22-04/))
+- MacOS via Homebrew: `brew install binaryen` (see [Homebrew entry](https://formulae.brew.sh/formula/binaryen))
+
 ### 2. Install Dependencies
 
-After installing `wasm-bindgen-cli`, you can install the necessary dependencies using the following command:
+After installing local tooling, you can install the necessary dependencies using the following command:
 
 ```bash
 npm install