diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..6e5d1ce
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,60 @@
+name: Build
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions-rust-lang/setup-rust-toolchain@v1
+      with:
+        toolchain: 1.74.0
+    - name: Cache WASI VFS
+      id: cache-wasi-vfs
+      uses: actions/cache@v4
+      with:
+        path: /usr/local/bin/wasi-vfs
+        key: ${{ runner.os }}-wasi-vfs
+    - uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: 3.2
+        bundler-cache: true
+    - uses: actions/setup-node@v4
+      with:
+        cache: yarn
+    - name: Install wasi-vfs
+      if: steps.cache-wasi-vfs.outputs.cache-hit != 'true'
+      run: |
+        curl -LO "https://github.com/kateinoigakukun/wasi-vfs/releases/download/v0.5.2/wasi-vfs-cli-x86_64-unknown-linux-gnu.zip"
+        unzip wasi-vfs-cli-x86_64-unknown-linux-gnu.zip
+        mv wasi-vfs /usr/local/bin/wasi-vfs
+    - name: Cache ruby.wasm artefacts
+      id: cache-ruby-wasm
+      uses: actions/cache@v4
+      with:
+        path: |
+          build
+          rubies
+        key: ${{ runner.os }}-ruby-wasm
+    - name: Cache compiled ruby.wasm module
+      id: cache-ruby-wasm-module
+      uses: actions/cache@v4
+      with:
+        path: |
+          src/ruby.wasm
+        key: ${{ runner.os }}-${{ hashFiles('**/Gemfile.lock') }}-ruby-wasm-module
+    - name: Build ruby.wasm
+      if: steps.cache-ruby-wasm-module.outputs.cache-hit != 'true'
+      run: |
+        sudo apt-get update
+        sudo apt-get -yqq install zlib1g-dev
+        bundle exec rbwasm build -o src/ruby.wasm --ruby-version 3.2
+    - name: Build web app
+      run: |
+        yarn build
diff --git a/.gitignore b/.gitignore
index 70e8212..a1e929a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,9 +7,6 @@
 tmp/
 dist/
 
-gemfiles/*.lock
-Gemfile.lock
-
 mspec/
 .rbnext/
 rubyspec_temp/
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..9eb1777
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,39 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    ast (2.4.2)
+    diff-lcs (1.5.0)
+    js (2.4.1.pre.1)
+    paco (0.2.3)
+    parser (3.3.0.4)
+      ast (~> 2.4.1)
+      racc
+    racc (1.7.3)
+    require-hooks (0.2.2)
+    ruby-next (1.0.0)
+      paco (~> 0.2)
+      require-hooks (~> 0.2)
+      ruby-next-core (= 1.0.0)
+      ruby-next-parser (>= 3.2.2.0)
+      unparser (~> 0.6.0)
+    ruby-next-core (1.0.0)
+    ruby-next-parser (3.2.2.0)
+      parser (>= 3.0.3.1)
+    ruby_wasm (2.5.0.pre.1)
+    unparser (0.6.12)
+      diff-lcs (~> 1.3)
+      parser (>= 3.2.2.4)
+
+PLATFORMS
+  arm64-darwin-21
+  aarch64-linux
+  x86_64-linux
+  ruby
+
+DEPENDENCIES
+  js (~> 2.4.1.pre.1)
+  ruby-next (~> 1.0)
+  ruby_wasm (~> 2.5.pre.1)
+
+BUNDLED WITH
+   2.5.3