diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index d4ca8b2495..5b8e95f20a 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -7,7 +7,7 @@ jobs:
   check:
     name: Neqo Build and Test
     strategy:
-      fail-fast: false
+      # fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest] # windows-latest,
         rust-toolchain: [stable] # , 1.65.0
@@ -18,36 +18,9 @@ jobs:
         if: runner.os == 'Linux'
         env:
           DEBIAN_FRONTEND: noninteractive
-          llvm_version: 14
         run: |
           sudo apt-get update
-          sudo apt-get install -y \
-            build-essential \
-            clang \
-            coreutils \
-            curl \
-            git \
-            gyp \
-            libclang-dev \
-            libssl-dev \
-            lld \
-            llvm-"$llvm_version" \
-            llvm-"$llvm_version"-runtime \
-            make \
-            mercurial \
-            ninja-build \
-            pkg-config \
-            ssh \
-            zlib1g-dev \
-            --no-install-recommends
-          [ -d "/usr/lib/llvm-$llvm_version/lib" ]
-          echo "LIBCLANG_DIR=/usr/lib/llvm-$llvm_version/lib" >> "$GITHUB_ENV"        # run: |
-        #   # sudo apt-get update
-        #   sudo apt-get install -y --no-install-recommends gyp mercurial ninja-build
-      # - name: Install Dependencies (Windows)
-      #   if: runner.os == 'Windows'
-      #   run: |
-      #     echo TBD
+          sudo apt-get install -y --no-install-recommends gyp mercurial ninja-build
       - name: Install Dependencies (MacOS)
         if: runner.os == 'MacOS'
         run: |
@@ -60,37 +33,33 @@ jobs:
         with:
           toolchain: ${{ matrix.rust-toolchain }}
           components: rustfmt, clippy
+          cache: false
 
       - name: Checkout
         uses: actions/checkout@v4
 
-      # This step might be removed if the distro included a recent enough
-      # version of NSS.  Ubuntu 20.04 only has 3.49, which is far too old.
-      # (neqo-crypto/build.rs would also need to query pkg-config to get the
-      # right build flags rather than building NSS.)
-      - name: Fetch NSS and NSPR
-        run: |
-          hg clone https://hg.mozilla.org/projects/nspr "$NSPR_DIR"
-          git clone --depth=1 https://github.com/nss-dev/nss "$NSS_DIR"
-          echo "NSS_DIR=$NSS_DIR" >> "$GITHUB_ENV"
-          echo "NSPR_DIR=$NSPR_DIR" >> "$GITHUB_ENV"
-        env:
-          NSS_DIR: ${{ github.workspace }}/nss
-          NSPR_DIR: ${{ github.workspace }}/nspr
+      # # This step might be removed if the distro included a recent enough
+      # # version of NSS.  Ubuntu 20.04 only has 3.49, which is far too old.
+      # # (neqo-crypto/build.rs would also need to query pkg-config to get the
+      # # right build flags rather than building NSS.)
+      # - name: Fetch NSS and NSPR
+      #   run: |
+      #     hg clone https://hg.mozilla.org/projects/nspr "$NSPR_DIR"
+      #     git clone --depth=1 https://github.com/nss-dev/nss "$NSS_DIR"
+      #     echo "NSS_DIR=$NSS_DIR" >> "$GITHUB_ENV"
+      #     echo "NSPR_DIR=$NSPR_DIR" >> "$GITHUB_ENV"
+      #   env:
+      #     NSS_DIR: ${{ github.workspace }}/nss
+      #     NSPR_DIR: ${{ github.workspace }}/nspr
 
       - name: Build
         run: cargo +${{ matrix.rust-toolchain }} build -v --tests
-        env:
-           DYLD_LIBRARY_PATH: ${{ github.workspace }}/dist/Debug/lib
-           LD_LIBRARY_PATH: ${{ github.workspace }}/dist/Debug/lib
-           RUST_BACKTRACE: 1
-           RUST_LOG: neqo=debug
 
       - name: Run Tests
         run: cargo +${{ matrix.rust-toolchain }} test -v
         env:
-           DYLD_LIBRARY_PATH: ${{ github.workspace }}/dist/Debug/lib
-           LD_LIBRARY_PATH: ${{ github.workspace }}/dist/Debug/lib
+          #  DYLD_LIBRARY_PATH: ${{ github.workspace }}/dist/Debug/lib
+          #  LD_LIBRARY_PATH: ${{ github.workspace }}/dist/Debug/lib
            RUST_BACKTRACE: 1
            RUST_LOG: neqo=debug