diff --git a/.github/workflows/bcny-firebase.yml b/.github/workflows/bcny-firebase.yml
index 37f33a10c7..f14b0778d2 100644
--- a/.github/workflows/bcny-firebase.yml
+++ b/.github/workflows/bcny-firebase.yml
@@ -3,6 +3,9 @@ name: firebase
 on:
   workflow_dispatch:
 
+env:
+  GITHUB_TOKEN: ${{ github.token }}
+
 jobs:
   windows:
     runs-on: windows-latest
@@ -19,55 +22,41 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          fetch-depth: 1
-          path: ${{ github.workspace }}/SourceCache/firebase-cpp-sdk
           ref: refs/heads/compnerd/swift
           repository: thebrowsercompany/firebase-cpp-sdk
 
-      - uses: compnerd/gha-setup-vsdevenv@main
-        with:
-          host_arch: amd64
-          components: 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64;Microsoft.VisualStudio.Component.VC.Tools.ARM64'
-          arch: ${{ matrix.arch }}
-
       - uses: actions/setup-python@v4
         id: python
         with:
-          python-version: 3.9
+          python-version: ${{ matrix.intentionally_broken_like_upstream }}
           architecture: 'x64'
 
-      - name: Install absl-py
-        run: pip install absl-py
+      - name: Install Desktop SDK prerequisites
+        uses: nick-invision/retry@v2
+        with:
+          timeout_minutes: 15
+          max_attempts: 3
+          command: |
+            python3 scripts/gha/install_prereqs_desktop.py --gha_build --arch '${{ matrix.arch }}'
 
-      - name: Configure firebase
+      - name: Build SDK
         run:
-          cmake -B ${{ github.workspace }}/BinaryCache/firebase `
-                -D BUILD_SHARED_LIBS=NO `
-                -D CMAKE_BUILD_TYPE=Release `
-                -D CMAKE_INSTALL_PREFIX=${{ github.workspace }}/BuildRoot/Library/firebase/usr `
-                -G "Visual Studio 17 2022" `
-                -A ${{ matrix.platform }} `
-                -S ${{ github.workspace }}/SourceCache/firebase-cpp-sdk `
-                -D FIREBASE_CPP_BUILD_PACKAGE=YES `
-                -D FIREBASE_GITHUB_ACTION_BUILD=YES `
-                -D FIREBASE_INCLUDE_LIBRARY_DEFAULT=OFF `
-                -D FIREBASE_INCLUDE_AUTH=YES `
-                -D FIREBASE_INCLUDE_FIRESTORE=YES `
-                -D FIREBASE_USE_BORINGSSL=YES `
-                -D MSVC_RUNTIME_LIBRARY_STATIC=NO `
-                -D Python3_EXECUTABLE=${{ steps.python.outputs.python-path }}
-      - name: Build firebase
-        run: cmake --build ${{ github.workspace }}/BinaryCache/firebase --config Release
+          python3 scripts/gha/build_desktop.py --arch "${{ matrix.arch }}" --config "Release" --msvc_runtime_library "dynamic" --target firebase_app firebase_auth firebase_firestore --gha_build --verbose
+
       - name: Install firebase
-        run: cmake --build ${{ github.workspace }}/BinaryCache/firebase --config Release --target install
+        run: cmake --build ${{ github.workspace }}/build --config Release --target install
+
       - name: Install firebase (manual)
         run: |
-          Copy-Item "${{ github.workspace }}/BinaryCache/firebase/external/src/firestore/Firestore/core/include/firebase/firestore/firestore_errors.h" "${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore/firestore_errors.h"
-          Copy-Item "${{ github.workspace }}/BinaryCache/firebase/external/src/firestore/Firestore/core/include/firebase/firestore/geo_point.h" "${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore/geo_point.h"
-          Copy-Item "${{ github.workspace }}/BinaryCache/firebase/external/src/firestore/Firestore/core/include/firebase/firestore/timestamp.h" "${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore/timestamp.h"
+          New-Item -ItemType Directory -Path ${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore
+          New-Item -ItemType Directory -Path ${{ github.workspace }}/BuildRoot/Library/firebase/usr/libs/windows
+
+          Copy-Item "${{ github.workspace }}/build/external/src/firestore/Firestore/core/include/firebase/firestore/firestore_errors.h" "${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore/firestore_errors.h"
+          Copy-Item "${{ github.workspace }}/build/external/src/firestore/Firestore/core/include/firebase/firestore/geo_point.h" "${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore/geo_point.h"
+          Copy-Item "${{ github.workspace }}/build/external/src/firestore/Firestore/core/include/firebase/firestore/timestamp.h" "${{ github.workspace }}/BuildRoot/Library/firebase/usr/include/firebase/firestore/timestamp.h"
 
           Write-Host "Copying static libraries ..."
-          $source = "${{ github.workspace }}/BinaryCache/firebase"
+          $source = "${{ github.workspace }}/build"
           $libraries = Get-ChildItem -Path $source -File -Recurse -Filter *.lib
           foreach ($library in $libraries) {
             $destination = Join-Path -Path "${{ github.workspace }}/BuildRoot/Library/firebase/usr/libs/windows" -ChildPath $library.Name