diff --git a/site-config/hsmcompute/.gitkeep b/site-config/hsmcompute/.gitkeep
deleted file mode 100644
index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..0000000000000000000000000000000000000000
diff --git a/site-config/hsmcompute/compilers.yaml b/site-config/hsmcompute/compilers.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..49dbb991316a716896d43bebac8a6ce21ea08ca2
--- /dev/null
+++ b/site-config/hsmcompute/compilers.yaml
@@ -0,0 +1,14 @@
+compilers:
+- compiler:
+    spec: gcc@10.1.0
+    paths:
+      cc: /apps/GCC/10.1.0/bin/gcc
+      cxx: /apps/GCC/10.1.0/bin/g++
+      f77: /apps/GCC/10.1.0/bin/gfortran
+      fc: /apps/GCC/10.1.0/bin/gfortran
+    flags: {}
+    operating_system: rhel8
+    target: ppc64le
+    modules: []
+    environment: {}
+    extra_rpaths: []
diff --git a/site-config/hsmcompute/packages.yaml b/site-config/hsmcompute/packages.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..5e27238eb081e6c3ffa0b182a0bcef737b862120
--- /dev/null
+++ b/site-config/hsmcompute/packages.yaml
@@ -0,0 +1,40 @@
+packages:
+  cuda:
+    buildable: false
+    compiler: []
+    externals:
+    - modules:
+      - cuda/11.3
+      spec: cuda@11.3.58
+    providers: {}
+    target: []
+    variants: +allow-unsupported-compilers
+    version:
+    - 11.3.58
+  nccl:
+    buildable: false
+    externals:
+    - modules:
+      - nvhpc/21.5
+      spec: nccl@2.8.3 +cuda cuda_arch=72
+      prefix: /apps/NVHPC/2021.215/Linux_ppc64le/21.5/comm_libs/nccl
+    version:
+    - 2.13.4
+  cudnn:
+    buildable: false
+    externals:
+    - modules:
+      - cudnn/8.6.0
+      spec: cudnn@8.6.0
+      prefix: /apps/CUDNN/8.6.0
+    version:
+    - 8.6.0
+  python:
+    version: [3.8.11]
+  all:
+    target: [ppc64le]
+    compiler: [gcc@10.1.0]
+    providers:
+      blas: [essl, openblas, netlib-lapack]
+      lapack: [openblas, netlib-lapack]
+      scalapack: [netlib-scalapack]
diff --git a/site-config/hsmcompute/repos.yaml b/site-config/hsmcompute/repos.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..4e5866275c877ad32447bd676faf26206c30a190
--- /dev/null
+++ b/site-config/hsmcompute/repos.yaml
@@ -0,0 +1,2 @@
+repos:
+- /apps/SPACK/0.19.2/spack-ebrains-releases/ebrains-23-06-stable-hsmcompute
diff --git a/site-config/hsmcompute/spack.yaml b/site-config/hsmcompute/spack.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..8bd217ba78cdae8c293e5299b4927c1c374ade1e
--- /dev/null
+++ b/site-config/hsmcompute/spack.yaml
@@ -0,0 +1,4 @@
+spack:
+  specs:
+    - apbs ^openblas
+    - harfbuzz@4.2.1