diff --git a/env/sles15/x86_64/sysconfigs/compilers.yaml b/env/sles15/x86_64/sysconfigs/compilers.yaml
index 668e5ad..88c3ef0 100644
--- a/env/sles15/x86_64/sysconfigs/compilers.yaml
+++ b/env/sles15/x86_64/sysconfigs/compilers.yaml
@@ -45,3 +45,20 @@ compilers:
     - libfabric/1.15.2.0
     environment: {}
     extra_rpaths: []
+- compiler:
+    spec: nvhpc@=23.9
+    paths:
+      cc: /opt/nvidia/hpc_sdk/Linux_x86_64/23.9/compilers/bin/nvc
+      cxx: /opt/nvidia/hpc_sdk/Linux_x86_64/23.9/compilers/bin/nvc++
+      f77: /opt/nvidia/hpc_sdk/Linux_x86_64/23.9/compilers/bin/nvfortran
+      fc: /opt/nvidia/hpc_sdk/Linux_x86_64/23.9/compilers/bin/nvfortran
+    flags: {}
+    operating_system: sles15
+    target: x86_64
+    modules:
+      - nvhpc-nompi/23.9
+      - libfabric/1.15.2.0
+    environment:
+      prepend_path:
+        LD_LIBRARY_PATH: /opt/nvidia/hpc_sdk/Linux_x86_64/23.9/math_libs/lib64/stubs
+    extra_rpaths: []
diff --git a/env/sles15/x86_64/sysconfigs/packages.yaml b/env/sles15/x86_64/sysconfigs/packages.yaml
index 2828235..7ef39fd 100644
--- a/env/sles15/x86_64/sysconfigs/packages.yaml
+++ b/env/sles15/x86_64/sysconfigs/packages.yaml
@@ -7,8 +7,12 @@ packages:
       mpi: [cray-mpich, openmpi]
       pkgconfig: [pkg-config]
       scalapack: [cray-libsci]
-    require: "os=sles15"
-    target: [x86_64]
+    require:
+      - spec: "os=sles15"
+      - spec: "target=x86_64"
+        when: "%gcc"
+      - spec: "target=zen3"
+        when: "%nvhpc"
     # Grace Hopper arch
     variants:
       - cuda_arch=80
@@ -53,12 +57,15 @@ packages:
           - cray-pmi
         prefix: /opt/cray/pe/pmi/6.1.13
         spec: cray-pmi@6.1.13%gcc
-  ctffind:
-    require: '%gcc@7.5.0'
   cuda:
     prefer:
     - spec: '@12.2.0'
     require: '@12.2.0:'
+    externals:
+      - modules:
+          - nvhpc-nompi/23.9
+        prefix: /opt/nvidia/hpc_sdk/Linux_x86_64/23.9/cuda
+        spec: cuda@12.2.0%nvhpc@23.9
   curl:
     require: '%gcc@7.5.0'
   expat:
@@ -183,14 +190,17 @@ packages:
     require: '%gcc@7.5.0'
   numactl:
     require: '%gcc@7.5.0'
+  nvhpc:
+    externals:
+      - modules:
+        - nvhpc-nompi/23.9
+        spec: nvhpc@23.9
   opal:
     require:
       - spec: '%gcc'
       - message: Opal 2022.1.0 only builds with gcc@10.4.0
         spec: '%gcc@10.4.0 ^openmpi'
         when: '@2022.1.0'
-  openblas:
-    require: '%gcc@7.5.0'
   opengl:
     require: '%gcc@7.5.0'
   openldap:
@@ -200,7 +210,10 @@ packages:
         spec: openldap@2.4.46
   openmpi:
     require:
-      - schedulers=slurm fabrics=ofi +pmi pmi-interface=cray +cxx +cxx_exceptions +cuda +legacylaunchers
+      - spec: 'schedulers=slurm fabrics=ofi +pmi pmi-interface=cray +cxx +cxx_exceptions +cuda +legacylaunchers'
+        when: '%gcc'
+      - spec: 'schedulers=slurm fabrics=ofi +pmi pmi-interface=cray +cxx +cuda +legacylaunchers'
+        when: '%nvhpc'
   openssh:
     require: '%gcc@7.5.0'
   openssl: