diff --git a/.github/workflows/preview_build.yml b/.github/workflows/preview_build.yml
deleted file mode 100644
--- a/.github/workflows/preview_build.yml
+++ /dev/null
@@ -1,135 +0,0 @@
-name: Preview build
-
-on:
-  repository_dispatch:
-    types:
-    - Preview*
-
-jobs:
-  preview:
-    name: Build preview
-
-    runs-on: ubuntu-20.04
-    container:
-      # If you change this version, change the number in the cache step too.
-      image: emscripten/emsdk:3.1.37
-
-    steps:
-    - name: Update deployment status to in progress
-      uses: octokit/request-action@v2.x
-      with:
-        route: POST /repos/{owner}/{repo}/deployments/{deployment_id}/statuses
-        mediaType: |
-          previews:
-          - ant-man
-          - flash
-        owner: ${{ github.event.repository.owner.login }}
-        repo: ${{ github.event.repository.name }}
-        deployment_id: ${{ github.event.client_payload.deployment_id }}
-        state: in_progress
-      env:
-        GITHUB_TOKEN: ${{ secrets.PREVIEW_GITHUB_TOKEN }}
-
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        ref: ${{ github.event.client_payload.sha }}
-
-    - name: Name branch
-      run: |
-        git config --global --add safe.directory ${GITHUB_WORKSPACE}
-        name=$(echo "${{ github.event.client_payload.folder }}")
-        git checkout -b ${name}
-
-    - name: Setup cache
-      uses: actions/cache@v3
-      with:
-        path: /emsdk/upstream/emscripten/cache
-        key: 3.1.37-${{ runner.os }}
-
-    - name: Patch Emscripten to support LZMA and nlohmann_json
-      run: |
-        cd /emsdk/upstream/emscripten
-        patch -p1 < ${GITHUB_WORKSPACE}/os/emscripten/emsdk-liblzma.patch
-        patch -p1 < ${GITHUB_WORKSPACE}/os/emscripten/emsdk-nlohmann-json.patch
-
-    - name: Build (host tools)
-      run: |
-        mkdir build-host
-        cd build-host
-
-        echo "::group::CMake"
-        cmake .. -DOPTION_TOOLS_ONLY=ON
-        echo "::endgroup::"
-
-        echo "::group::Build"
-        echo "Running on $(nproc) cores"
-        make -j$(nproc) tools
-        echo "::endgroup::"
-
-    - name: Install GCC problem matcher
-      uses: ammaraskar/gcc-problem-matcher@master
-
-    - name: Build
-      run: |
-        mkdir build
-        cd build
-
-        echo "::group::CMake"
-        emcmake cmake .. \
-          -DHOST_BINARY_DIR=../build-host \
-          -DCMAKE_BUILD_TYPE=Release \
-          # EOF
-        echo "::endgroup::"
-
-        echo "::group::Build"
-        echo "Running on $(nproc) cores"
-        cmake --build . -j $(nproc) --target openttd
-        echo "::endgroup::"
-
-    - name: Publish preview
-      run: |
-        pip3 install awscli
-
-        aws s3 cp --only-show-errors build/openttd.data s3://${{ secrets.PREVIEW_S3_BUCKET }}/${{ github.event.client_payload.folder }}/
-        aws s3 cp --only-show-errors build/openttd.html s3://${{ secrets.PREVIEW_S3_BUCKET }}/${{ github.event.client_payload.folder }}/
-        aws s3 cp --only-show-errors build/openttd.js s3://${{ secrets.PREVIEW_S3_BUCKET }}/${{ github.event.client_payload.folder }}/
-        aws s3 cp --only-show-errors build/openttd.wasm s3://${{ secrets.PREVIEW_S3_BUCKET }}/${{ github.event.client_payload.folder }}/
-
-        # Invalidate the cache of the CloudFront distribution
-        aws cloudfront create-invalidation --distribution-id ${{ secrets.PREVIEW_CF_DISTRIBUTION_ID }} --paths "/${{ github.event.client_payload.folder }}/*"
-      env:
-        AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
-        AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-
-    - name: Update deployment status to success
-      uses: octokit/request-action@v2.x
-      with:
-        route: POST /repos/{owner}/{repo}/deployments/{deployment_id}/statuses
-        mediaType: |
-          previews:
-          - ant-man
-          - flash
-        owner: ${{ github.event.repository.owner.login }}
-        repo: ${{ github.event.repository.name }}
-        deployment_id: ${{ github.event.client_payload.deployment_id }}
-        state: success
-        environment_url: https://preview.openttd.org/${{ github.event.client_payload.folder }}/
-      env:
-        GITHUB_TOKEN: ${{ secrets.PREVIEW_GITHUB_TOKEN }}
-
-    - if: failure()
-      name: Update deployment status to failure
-      uses: octokit/request-action@v2.x
-      with:
-        route: POST /repos/{owner}/{repo}/deployments/{deployment_id}/statuses
-        mediaType: |
-          previews:
-          - ant-man
-          - flash
-        owner: ${{ github.event.repository.owner.login }}
-        repo: ${{ github.event.repository.name }}
-        deployment_id: ${{ github.event.client_payload.deployment_id }}
-        state: failure
-      env:
-        GITHUB_TOKEN: ${{ secrets.PREVIEW_GITHUB_TOKEN }}