diff --git a/.github/actions/ruby_install/action.yml b/.github/actions/ruby_install/action.yml
new file mode 100644
index 0000000..ab3fa43
--- /dev/null
+++ b/.github/actions/ruby_install/action.yml
@@ -0,0 +1,34 @@
+name: "Install Ruby"
+
+inputs:
+  ruby-version:
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Setup env
+      shell: bash
+      run: |
+        echo "PATH=/opt/rubies/${{ inputs.ruby-version }}/bin:$PATH" >> $GITHUB_ENV
+        echo "GEM_HOME=~/.gem/ruby/${{ inputs.ruby-version }}" >> $GITHUB_ENV
+
+    - name: Cache
+      uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4
+      with:
+        path: |
+          /opt/rubies/${{ inputs.ruby-version }}
+          ~/.gem/ruby/${{ inputs.ruby-version }}
+        key: ruby-static-${{ runner.os }}-${{ inputs.ruby-version }}
+
+    - name: Build static ruby
+      working-directory: /tmp
+      shell: bash
+      run: |
+        if [ -d /opt/rubies/${{inputs.ruby-version }} ]; then
+          echo "Ruby ${{ inputs.ruby-version }} already installed, skipping build"
+        else
+          git clone https://github.com/rbenv/ruby-build.git
+          PREFIX=/usr/local sudo -E ./ruby-build/install.sh
+          CC=clang RUBY_CONFIGURE_OPTS="--disable-shared" sudo -E ruby-build ${{ inputs.ruby-version }} /opt/rubies/${{ inputs.ruby-version }}
+        fi
diff --git a/.github/workflows/book.yml b/.github/workflows/book.yml
index 0ea529d..480f933 100644
--- a/.github/workflows/book.yml
+++ b/.github/workflows/book.yml
@@ -10,35 +10,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
+      - uses: ./.github/actions/ruby_install
         with:
-          fetch-depth: 0
-      - name: Cache Ruby
-        id: cache-ruby
-        uses: actions/cache@v4
-        with:
-          path: rubies
-          key: ${{ runner.os }}-ruby
-      - name: Install Ruby
-        if: steps.cache-ruby.outputs.cache-hit != 'true'
-        env:
-          CC: clang
-        run: |
-          url="https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.4.tar.gz"
-          prefix=`pwd`/rubies/ruby-3.4
-          mkdir rubies
-          mkdir ruby_src
-          curl -sSL $url | tar -xz
-          cd ruby-3.4.4
-          mkdir build
-          cd build
-          ../configure --without-shared --prefix=$prefix
-          make install
-          echo $prefix/bin >> $GITHUB_PATH
-      - name: Add Ruby to PATH
-        run: |
-          prefix=`pwd`/rubies/ruby-3.4
-          echo $prefix/bin >> $GITHUB_PATH
+          ruby-version: "3.4.4"
       - name: Install latest mdbook
         run: |
           tag=$(curl 'https://api.github.com/repos/rust-lang/mdbook/releases/latest' | jq -r '.tag_name')
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 85c2931..4e9ac93 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -11,36 +11,19 @@ env:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
     env:
       RUSTFLAGS: -D warnings
+    strategy:
+      matrix:
+        ruby-version: ["3.4.4"]
+        sys:
+          - os: ubuntu-latest
+    runs-on: ${{ matrix.sys.os }}
     steps:
       - uses: actions/checkout@v3
-      - name: Cache Ruby
-        id: cache-ruby
-        uses: actions/cache@v4
+      - uses: ./.github/actions/ruby_install
         with:
-          path: rubies
-          key: ${{ runner.os }}-ruby
-      - name: Install Ruby
-        if: steps.cache-ruby.outputs.cache-hit != 'true'
-        env:
-          CC: clang
-        run: |
-          url="https://cache.ruby-lang.org/pub/ruby/3.4/ruby-3.4.4.tar.gz"
-          prefix=`pwd`/rubies/ruby-3.4
-          mkdir rubies
-          mkdir ruby_src
-          curl -sSL $url | tar -xz
-          cd ruby-3.4.4
-          mkdir build
-          cd build
-          ../configure --without-shared --prefix=$prefix
-          make install
-      - name: Add Ruby to PATH
-        run: |
-          prefix=`pwd`/rubies/ruby-3.4
-          echo $prefix/bin >> $GITHUB_PATH
+          ruby-version: ${{ matrix.ruby-version }}
       - name: Clippy
         run: cargo clippy --all-features --verbose -- -D warnings
       - name: Build
diff --git a/book/book.toml b/book/book.toml
index 8903447..7e4cc9f 100644
--- a/book/book.toml
+++ b/book/book.toml
@@ -1,6 +1,5 @@
 [book]
 authors = ["Jaroslaw Konik"]
 language = "en"
-multilingual = false
 src = "src"
 title = "bevy_scriptum"