diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 98ff3d69c..598c4f243 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
       fail-fast: false
     runs-on: ${{ matrix.device }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Configure
         run: .github/workflows/configure.sh ${{matrix.maker}} ${{matrix.device}}
       - name: Build
diff --git a/.github/workflows/spack.sh b/.github/workflows/spack.sh
new file mode 100755
index 000000000..5c05d27f1
--- /dev/null
+++ b/.github/workflows/spack.sh
@@ -0,0 +1,67 @@
+#!/bin/bash -e
+
+bstage=$1
+device=$2
+
+set +x
+trap 'echo "# $BASH_COMMAND"' DEBUG
+
+source /etc/profile
+
+COMPILER=gcc@11
+MPI=intel-oneapi-mpi
+BLAS=intel-oneapi-mkl
+
+# Get the system-install ROCM version
+ROCM_VER=$(ls /opt | grep rocm- | sed s/rocm-//)
+# Get the system-install CUDA version
+CUDA_VER=$(cd /usr/local && ls -d cuda-*.* | sed "s/cuda-//")
+
+if [ "${bstage}" = "deps" ]; then
+  git clone https://github.com/spack/spack
+  cp .github/workflows/spack_packages_yaml spack/etc/spack/packages.yaml
+  # Use $ROCM_VER in the spack package config
+  sed -i "s/ROCMVER/$ROCM_VER/" spack/etc/spack/packages.yaml
+  # Use $CUDA_VER in the spack package config
+  sed -i "s/CUDAVER/$CUDA_VER/" spack/etc/spack/packages.yaml
+fi
+
+export HOME=$(pwd)
+source spack/share/spack/setup-env.sh
+module load $COMPILER
+spack compiler find --scope=site
+
+if [ "${device}" = "cpu" ]; then
+  SPEC=""
+elif [ "${device}" = "gpu_nvidia" ]; then
+  ARCH=$(nvidia-smi --query-gpu=compute_cap --format=csv,noheader | head -1 | sed -e 's/\.//')
+  SPEC="+cuda cuda_arch=$ARCH"
+elif [ "${device}" = "gpu_amd" ]; then
+  TARGET=$(rocminfo | grep Name | grep gfx | head -1 | awk '{print $2}')
+  SPEC="+rocm amdgpu_target=$TARGET ^hip@$ROCM_VER"
+else
+  SPEC="+sycl"
+  COMPILER=oneapi
+  module load intel-oneapi-compilers
+  spack compiler find --scope=site
+fi
+SPEC="slate@master $SPEC %$COMPILER ^$MPI ^$BLAS"
+echo SPEC=$SPEC
+
+if [ "${bstage}" = "deps" ]; then
+  # Change the stage directory so we can find it later
+  spack config --scope=site add config:build_stage:`pwd`/spack-stage
+  spack spec $SPEC
+  spack install --only=dependencies --fail-fast $SPEC
+elif [ "${bstage}" = "build" ]; then
+  spack dev-build -i $SPEC
+elif [ "${bstage}" = "test" ]; then
+  spack uninstall -y slate
+  spack dev-build --test=root $SPEC || (
+    cat spack-stage/github/spack-stage-slate-master-*/install-time-test-log.txt
+    exit 22
+  )
+elif [ "${bstage}" = "smoke" ]; then
+  spack test run slate
+fi
+
diff --git a/.github/workflows/spack.yml b/.github/workflows/spack.yml
new file mode 100644
index 000000000..912826435
--- /dev/null
+++ b/.github/workflows/spack.yml
@@ -0,0 +1,26 @@
+name: Spack
+
+# Controls when the workflow will run
+on:
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  slate_spack:
+    timeout-minutes: 360
+    strategy:
+      matrix:
+        device: [gpu_nvidia, gpu_amd, cpu]
+      fail-fast: false
+    runs-on: ${{ matrix.device }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build Dependencies
+        run: .github/workflows/spack.sh deps ${{matrix.device}}
+      - name: Build SLATE
+        run: .github/workflows/spack.sh build ${{matrix.device}}
+      - name: Pre-install Test
+        run: .github/workflows/spack.sh test ${{matrix.device}}
+      - name: Post-install Test
+        run: .github/workflows/spack.sh smoke ${{matrix.device}}
diff --git a/.github/workflows/spack_packages_yaml b/.github/workflows/spack_packages_yaml
new file mode 100644
index 000000000..e4d0c99fc
--- /dev/null
+++ b/.github/workflows/spack_packages_yaml
@@ -0,0 +1,39 @@
+packages:
+  all:
+    target: ['x86_64']
+  cuda:
+    buildable: false
+    externals:
+    - spec: cuda@CUDAVER
+      prefix: /usr/local/cuda-CUDAVER/
+  hip:
+    buildable: false
+    externals:
+    - spec: hip@ROCMVER
+      prefix: /opt/rocm-ROCMVER/
+  rocblas:
+    buildable: false
+    externals:
+    - spec: rocblas@ROCMVER
+      prefix: /opt/rocm-ROCMVER/rocblas/
+  llvm-amdgpu:
+    buildable: false
+    externals:
+    - spec: llvm-amdgpu@ROCMVER
+      prefix: /opt/rocm-ROCMVER
+  comgr:
+    buildable: false
+    externals:
+    - spec: comgr@ROCMVER
+      prefix: /opt/rocm-ROCMVER
+  rocsolver:
+    buildable: false
+    externals:
+    - spec: rocsolver@ROCMVER
+      prefix: /opt/rocm-ROCMVER/rocsolver
+  hsa-rocr-dev:
+    buildable: false
+    externals:
+    - spec: hsa-rocr-dev@ROCMVER
+      prefix: /opt/rocm-ROCMVER/hsa/
+
diff --git a/unit_test/test_internal_blas.cc b/unit_test/test_internal_blas.cc
index a2cbac79c..fed5b1c3e 100644
--- a/unit_test/test_internal_blas.cc
+++ b/unit_test/test_internal_blas.cc
@@ -53,6 +53,7 @@ const char* target_name(slate::Target target)
         case slate::Target::Devices:   return "Devices";
         default: assert(false);
     }
+    return "Error";
 }
 
 // -----------------------------------------------------------------------------