diff --git a/.gitea/workflows/deploy.yaml b/.gitea/workflows/deploy.yaml
index 2fbf21f..03a49d7 100644
--- a/.gitea/workflows/deploy.yaml
+++ b/.gitea/workflows/deploy.yaml
@@ -8,17 +8,36 @@ jobs:
   build:
     runs-on: ubuntu-latest
     container:
-      image: gitea/act_runner:latest
+      image: node:20-bookworm
+
     steps:
+      # 1️⃣ Checkout repository
       - uses: actions/checkout@v4
 
-      - name: Install Python + MkDocs
+      # 2️⃣ Install Docker CLI in container
+      - name: Install Docker CLI
         run: |
           apt-get update
-          apt-get install -y python3 python3-venv
-          python3 -m venv .venv
-          .venv/bin/pip install --upgrade pip
-          .venv/bin/pip install -r ci/mkdocs/requirements.txt
+          apt-get install -y ca-certificates curl gnupg lsb-release
+          install -m 0755 -d /etc/apt/keyrings
+          curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
+          chmod a+r /etc/apt/keyrings/docker.gpg
+          echo \
+            "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] \
+            https://download.docker.com/linux/debian $(lsb_release -cs) stable" | \
+            tee /etc/apt/sources.list.d/docker.list > /dev/null
+          apt-get update
+          apt-get install -y docker-ce-cli
 
-      - name: Build site
-        run: .venv/bin/mkdocs build --clean --site-dir /public
+      # 3️⃣ Build MkDocs into Docker volume
+      - name: Build MkDocs into notes_public volume
+        run: |
+          docker run --rm \
+            -v notes_public:/public \
+            -v "${{ github.workspace }}:/work" \
+            -w /work \
+            python:3.13-slim \
+            sh -c "python3 -m venv .venv && \
+                   .venv/bin/pip install --upgrade pip && \
+                   .venv/bin/pip install -r ci/mkdocs/requirements.txt && \
+                   .venv/bin/mkdocs build --clean --site-dir /public"