diff --git a/.github/workflows/build-test.yaml b/.github/workflows/build-test.yaml
index 76734bf..5bba3dd 100644
--- a/.github/workflows/build-test.yaml
+++ b/.github/workflows/build-test.yaml
@@ -14,11 +14,76 @@ jobs:
         shell: bash
         run: |
           sudo apt-get update
-          sudo apt-get install -y cmake build-essential libfmt-dev yosys
-      - uses: YosysHQ/setup-oss-cad-suite@v3
+          sudo apt-get install -y cmake build-essential libfmt-dev
+          sudo apt-get install -y gperf build-essential bison flex libreadline-dev gawk tcl-dev libffi-dev git graphviz xdot pkg-config python3 libboost-system-dev libboost-python-dev libboost-filesystem-dev zlib1g-dev
       - uses: actions/checkout@v3
         with:
-          submodules: 'recursive'
           fetch-depth: 0
-      - run: |
-          TARGET=build/slang.so ./build.sh
+      - name: Initialize submodules
+        run: |
+          git submodule init
+      - name: Find out Yosys revision
+        run: |
+          {
+            echo -n "YOSYS_HASH="
+            git submodule status --cached tests/third_party/yosys | awk '{print $1}'
+          } >> $GITHUB_ENV
+      - name: Cache Yosys build
+        id: cache-yosys
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-yosys
+        with:
+          path: tests/third_party/yosys
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ env.YOSYS_HASH }}
+      - if: ${{ steps.cache-yosys.outputs.cache-hit != 'true' }}
+        name: Pull Yosys
+        run: |
+          git submodule update --depth 0 -- tests/third_party/yosys
+      - if: ${{ steps.cache-yosys.outputs.cache-hit != 'true' }}
+        name: Build Yosys
+        shell: bash
+        run: |
+          cd tests/third_party/yosys
+          make config-gcc
+          echo "ENABLE_ABC := 0" >> Makefile.conf
+          make -j6
+      - name: Install Yosys
+        shell: bash
+        run: |
+          cd tests/third_party/yosys
+          sudo make install
+      - name: Find out Slang revision
+        run: |
+          {
+            echo -n "SLANG_HASH="
+            git submodule status --cached third_party/slang | awk '{print $1}'
+          } >> $GITHUB_ENV
+      - name: Cache Slang build
+        id: cache-slang
+        uses: actions/cache@v3
+        env:
+          cache-name: cache-slang
+        with:
+          path: build/slang_install
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ env.SLANG_HASH }}
+      - if: ${{ steps.cache-slang.outputs.cache-hit != 'true' }}
+        name: Pull Slang
+        run: |
+          git submodule update --depth 0 -- third_party/slang
+      - if: ${{ steps.cache-slang.outputs.cache-hit != 'true' }}
+        name: Build Slang
+        shell: bash
+        run: |
+          cmake -S third_party/slang -B build/slang -DCMAKE_INSTALL_PREFIX=build/slang_install -DSLANG_USE_MIMALLOC=OFF \
+            -DSLANG_INCLUDE_TESTS=OFF -DCMAKE_BUILD_TYPE=Release -DSLANG_INCLUDE_TOOLS=OFF \
+            -DCMAKE_CXX_FLAGS="-fPIC" -DBoost_NO_BOOST_CMAKE=ON
+          make -C build/slang -j$(nproc)
+          make -C build/slang install
+      - name: Build yosys-slang
+        run: |
+          yosys-config --build slang.so \
+            slang_frontend.cc initial_eval.cc proc_usage.cc \
+            -Ibuild/slang_install/include -std=c++20 \
+            -DSLANG_BOOST_SINGLE_HEADER -Lbuild/slang_install/lib \
+            -lsvlang -lfmt