diff --git a/.github/actions/setup-node-pnpm/action.yml b/.github/actions/setup-node-pnpm/action.yml
new file mode 100644
index 000000000..5ee43fe0e
--- /dev/null
+++ b/.github/actions/setup-node-pnpm/action.yml
@@ -0,0 +1,43 @@
+name: 'Setup Node with Corepack and pnpm'
+description: 'Sets up Node.js with Corepack-managed pnpm and caching'
+
+inputs:
+  node-version-file:
+    description: 'Path to Node version file'
+    required: false
+    default: '.node-version'
+  node-version:
+    description: 'Node version (overrides node-version-file)'
+    required: false
+  registry-url:
+    description: 'Registry URL for npm authentication'
+    required: false
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Setup Node.js
+      uses: actions/setup-node@v6
+      id: setup-node
+      with:
+        node-version: ${{ inputs.node-version }}
+        node-version-file: ${{ inputs.node-version && '' || inputs.node-version-file }}
+        registry-url: ${{ inputs.registry-url }}
+
+    - name: Enable Corepack
+      shell: bash
+      run: corepack enable
+
+    - name: Setup pnpm cache
+      uses: actions/cache@v4
+      with:
+        path: ${{ github.workspace }}/.pnpm-store
+        key: ${{ runner.os }}-node-${{ steps.setup-node.outputs.node-version }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+        restore-keys: |
+          ${{ runner.os }}-node-${{ steps.setup-node.outputs.node-version }}-pnpm-store-
+
+    - name: Install dependencies
+      shell: bash
+      env:
+        PNPM_STORE_DIR: ${{ github.workspace }}/.pnpm-store
+      run: pnpm install --frozen-lockfile
diff --git a/.github/workflows/conformance.yml b/.github/workflows/conformance.yml
index 47606314e..18550a433 100644
--- a/.github/workflows/conformance.yml
+++ b/.github/workflows/conformance.yml
@@ -18,17 +18,8 @@ jobs:
         runs-on: ubuntu-latest
         continue-on-error: true
         steps:
-            - uses: actions/checkout@v4
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              with:
-                  run_install: false
-            - uses: actions/setup-node@v4
-              with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
-            - run: pnpm install
+            - uses: actions/checkout@v6
+            - uses: ./.github/actions/setup-node-pnpm
             - run: pnpm run build:all
             - run: pnpm run test:conformance:client:all
 
@@ -36,16 +27,7 @@ jobs:
         runs-on: ubuntu-latest
         continue-on-error: true
         steps:
-            - uses: actions/checkout@v4
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              with:
-                  run_install: false
-            - uses: actions/setup-node@v4
-              with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
-            - run: pnpm install
+            - uses: actions/checkout@v6
+            - uses: ./.github/actions/setup-node-pnpm
             - run: pnpm run build:all
             - run: pnpm run test:conformance:server
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 73162fba5..e3d9ca3bd 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,19 +17,7 @@ jobs:
 
         steps:
             - uses: actions/checkout@v6
-
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              id: pnpm-install
-              with:
-                  run_install: false
-            - uses: actions/setup-node@v6
-              with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
-
-            - run: pnpm install
+            - uses: ./.github/actions/setup-node-pnpm
             - run: pnpm run check:all
             - run: pnpm run build:all
 
@@ -42,20 +30,9 @@ jobs:
 
         steps:
             - uses: actions/checkout@v6
-
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              id: pnpm-install
-              with:
-                  run_install: false
-            - uses: actions/setup-node@v6
+            - uses: ./.github/actions/setup-node-pnpm
               with:
                   node-version: ${{ matrix.node-version }}
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
-
-            - run: pnpm install
-
             - run: pnpm test:all
 
     publish:
@@ -69,20 +46,10 @@ jobs:
             id-token: write
 
         steps:
-            - uses: actions/checkout@v4
-
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              id: pnpm-install
-              with:
-                  run_install: false
-            - uses: actions/setup-node@v4
+            - uses: actions/checkout@v6
+            - uses: ./.github/actions/setup-node-pnpm
               with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
                   registry-url: 'https://registry.npmjs.org'
-            - run: pnpm install
 
             - name: Determine npm tag
               id: npm-tag
@@ -120,22 +87,11 @@ jobs:
             contents: write
 
         steps:
-            - uses: actions/checkout@v4
+            - uses: actions/checkout@v6
               with:
                   fetch-depth: 0 # Fetch all history for all branches and tags
 
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              with:
-                  run_install: false
-            - uses: actions/setup-node@v4
-              with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
-
-            - name: Install dependencies
-              run: pnpm install
+            - uses: ./.github/actions/setup-node-pnpm
 
             - name: Configure Git
               run: |
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index a180396b6..01389c942 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -17,23 +17,10 @@ jobs:
 
         steps:
             - uses: actions/checkout@v6
-
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              with:
-                  run_install: false
-
-            - name: Setup Node.js
-              uses: actions/setup-node@v6
+            - uses: ./.github/actions/setup-node-pnpm
               with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
                   registry-url: 'https://registry.npmjs.org'
 
-            - name: Install dependencies
-              run: pnpm install
-
             - name: Build packages
               run: pnpm run build:all
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ed0b1061b..373a117b4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,23 +17,10 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - uses: actions/checkout@v6
-
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              with:
-                  run_install: false
-
-            - name: Setup Node.js
-              uses: actions/setup-node@v6
+            - uses: ./.github/actions/setup-node-pnpm
               with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
                   registry-url: 'https://registry.npmjs.org'
 
-            - name: Install dependencies
-              run: pnpm install
-
             - name: Create Release Pull Request or Publish to npm
               id: changesets
               uses: changesets/action@v1
diff --git a/.github/workflows/update-spec-types.yml b/.github/workflows/update-spec-types.yml
index 4a54f76c5..446067dcd 100644
--- a/.github/workflows/update-spec-types.yml
+++ b/.github/workflows/update-spec-types.yml
@@ -17,21 +17,7 @@ jobs:
             - name: Checkout repository
               uses: actions/checkout@v6
 
-            - name: Install pnpm
-              uses: pnpm/action-setup@v4
-              id: pnpm-install
-              with:
-                  run_install: false
-
-            - name: Setup Node.js
-              uses: actions/setup-node@v6
-              with:
-                  node-version: 24
-                  cache: pnpm
-                  cache-dependency-path: pnpm-lock.yaml
-
-            - name: Install dependencies
-              run: pnpm install
+            - uses: ./.github/actions/setup-node-pnpm
 
             - name: Fetch latest spec types
               run: pnpm run fetch:spec-types
diff --git a/.node-version b/.node-version
new file mode 100644
index 000000000..11c309c52
--- /dev/null
+++ b/.node-version
@@ -0,0 +1 @@
+v24.13.1