diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a702f6c..9185846 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ on:
 env:
   # Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
   BUILD_TYPE: Debug
-
+  CXX: g++-9
 jobs:
   build:
     # The CMake configure and build commands are platform agnostic and should work equally
@@ -19,6 +19,11 @@ jobs:
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
     runs-on: ubuntu-latest
     timeout-minutes: 90
+    container: 
+      image: ghcr.io/${{ github.actor }}/ubuntu-dev:latest
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.GHCR_TOKEN }}
     steps:
     - uses: actions/checkout@v2
       with:
@@ -26,33 +31,33 @@ jobs:
     - name: Install dependencies
       run: |
           uname -a
-          sudo apt-fast install -y autoconf-archive bison libunwind-dev libfl-dev ninja-build libtool curl gcc-10 g++-10
-          sudo apt-fast install -y libboost-all-dev libxml2-dev zip ccache
           cmake --version
           mkdir -p ${{github.workspace}}/build
-    - name: Cache ccache
-      id: cache-ccache
+    - name: Cache build deps
+      id: cache-deps
       uses: actions/cache@v2
       with:
         path: |
           ~/.ccache
-        key: ${{ runner.os }}-ccache-${{ github.sha }}
-        restore-keys: ${{ runner.os }}-ccache-
+          ${{github.workspace}}/build/_deps
+        key: ${{ runner.os }}-deps-${{ github.sha }}
+        restore-keys: |
+          ${{ runner.os }}-deps-
+          
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
       # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
       run: |
           cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -GNinja -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
-          cd ${{github.workspace}}/build
-      env:
-        CC: gcc-10
-        CXX: g++-10
-    - name: Build & Test
-      working-directory: ${{github.workspace}}/build
+          cd ${{github.workspace}}/build && pwd
+          du -hcs _deps/
+    - name: Build & Test      
       run: |
+          cd ${{github.workspace}}/build
           ninja core/all server/all
           ccache --show-stats
           # GLOG_logtostderr=1 ctest -V -R list_family_test
           echo Run ctest -V -L DFLY
-          GLOG_logtostderr=1 GLOG_vmodule=transaction=1,engine_shard_set=1 ctest -V -L DFLY
-          GLOG_logtostderr=1 GLOG_vmodule=transaction=1,engine_shard_set=1 CTEST_OUTPUT_ON_FAILURE=1 ninja server/test
+          #GLOG_logtostderr=1 GLOG_vmodule=transaction=1,engine_shard_set=1 
+          ctest -V -L DFLY
+          # GLOG_logtostderr=1 GLOG_vmodule=transaction=1,engine_shard_set=1 CTEST_OUTPUT_ON_FAILURE=1 ninja server/test