diff --git a/easystacks/software.eessi.io/2023.06/a64fx/eessi-2023.06-eb-4.9.4-2023a.yml b/easystacks/software.eessi.io/2023.06/a64fx/eessi-2023.06-eb-4.9.4-2023a.yml
index 170a639064..fe1e7d3631 100644
--- a/easystacks/software.eessi.io/2023.06/a64fx/eessi-2023.06-eb-4.9.4-2023a.yml
+++ b/easystacks/software.eessi.io/2023.06/a64fx/eessi-2023.06-eb-4.9.4-2023a.yml
@@ -9,3 +9,93 @@ easyconfigs:
       options:
         # see https://github.com/easybuilders/easybuild-easyconfigs/pull/21600
         from-commit: 9b12318bcff1749781d9eb71c23e21bc3a79ed01
+# from here continuing building up the stack; first apps originally built with EB
+# 4.8.2
+# originally built with EB 4.8.2; PR 19270 included since EB 4.9.0
+#  - pybind11-2.11.1-GCCcore-12.3.0.eb:
+#      # avoid indirect dependency on old CMake version built with GCCcore/10.2.0 via Catch2 build dependency;
+#      # see https://github.com/easybuilders/easybuild-easyconfigs/pull/19270
+#      options:
+#        from-pr: 19270
+  - pybind11-2.11.1-GCCcore-12.3.0.eb
+# the package SciPy-bundle itself has to be rebuilt; here we use the commit to add the dependency
+# Cython; PR 21693 is included since EB 5.0.0
+#  - SciPy-bundle-2023.07-gfbf-2023a.eb:
+#      options:
+#        from-pr: 21693
+  - SciPy-bundle-2023.07-gfbf-2023a.eb:
+      options:
+        from-commit: 7c5144d2c1a061cd9f08b5901970b7f6ec5eb5c0
+# install Cython (new dependency of SciPy-bundle), PR 20578 is included since
+# EB 5.0.0; try a little older version from PR 20525 that is included since EB
+# 4.9.2
+#  - Cython-3.0.8-GCCcore-12.3.0.eb:
+#      options:
+#        # see https://github.com/easybuilders/easybuild-easyconfigs/pull/20578
+#        from-commit: c4c2826ed8afe83885bba113b0aee36477d2948c
+# for the version from EB 4.9.2 we don't need any options because we use EB 4.9.4
+  - Cython-3.0.8-GCCcore-12.3.0.eb
+# install dependencies of TensorFlow
+  - Bazel-6.3.1-GCCcore-12.3.0.eb
+  - dill-0.3.7-GCCcore-12.3.0.eb
+  - flatbuffers-23.5.26-GCCcore-12.3.0.eb
+  - h5py-3.9.0-foss-2023a.eb
+  - flatbuffers-python-23.5.26-GCCcore-12.3.0.eb
+  - JsonCpp-1.9.5-GCCcore-12.3.0.eb
+  - nsync-1.26.0-GCCcore-12.3.0.eb
+  - RE2-2023-08-01-GCCcore-12.3.0.eb
+  - protobuf-python-4.24.0-GCCcore-12.3.0.eb
+## originally built with EB 4.8.2; PR 19268 included since EB 4.9.0
+##  - TensorFlow-2.13.0-foss-2023a.eb:
+##      # patch setup.py for grpcio extension in TensorFlow 2.13.0 easyconfigs to take into account alternate sysroot;
+##      # see https://github.com/easybuilders/easybuild-easyconfigs/pull/19268
+##      options:
+##        from-pr: 19268
+#  - TensorFlow-2.13.0-foss-2023a.eb
+#  - X11-20230603-GCCcore-12.3.0.eb
+## originally built with EB 4.8.2; PR 19339 included since EB 4.9.0
+## - HarfBuzz-5.3.1-GCCcore-12.3.0.eb:
+##      options:
+##        from-pr: 19339
+#  - HarfBuzz-5.3.1-GCCcore-12.3.0.eb
+#  - Qt5-5.15.10-GCCcore-12.3.0.eb
+#  - OSU-Micro-Benchmarks-7.1-1-gompi-2023a.eb
+## originally built with EB 4.8.2; PR 19363 included since EB 4.9.0
+##  - LHAPDF-6.5.4-GCC-12.3.0.eb:
+##      options:
+##        from-pr: 19363
+#  - LHAPDF-6.5.4-GCC-12.3.0.eb
+## originally built with EB 4.8.2; PR 19397 included since EB 4.9.0
+##  - LoopTools-2.15-GCC-12.3.0.eb:
+##      options:
+##        from-pr: 19397
+#  - LoopTools-2.15-GCC-12.3.0.eb
+## originally built with EB 4.8.2; PR 19185 included since EB 4.9.0
+##  - R-4.3.2-gfbf-2023a.eb:
+##      options:
+##        from-pr: 19185
+#  - R-4.3.2-gfbf-2023a.eb
+## originally built with EB 4.8.2; source URL has changed recently
+##  - Boost-1.82.0-GCC-12.3.0.eb
+#  - Boost-1.82.0-GCC-12.3.0.eb:
+#      options:
+#        # source URLs for Boost have changed, corresponding PR is
+#        # https://github.com/easybuilders/easybuild-easyconfigs/pull/22157
+#        from-commit: 5bebccf792ccf35a8ee3250bc8fed86dff5d5df9
+#  - netCDF-4.9.2-gompi-2023a.eb
+#  - FFmpeg-6.0-GCCcore-12.3.0.eb
+## originally built with EB 4.8.2; PR 19455 included since EB 4.9.0
+##  - ALL-0.9.2-foss-2023a.eb:
+##      options:
+##        from-pr: 19455
+#  - ALL-0.9.2-foss-2023a.eb
+## originally built with EB 4.8.2; PR 19735 included since EB 4.9.1
+##  - CDO-2.2.2-gompi-2023a.eb:
+##      options:
+##        from-pr: 19735
+#  - CDO-2.2.2-gompi-2023a.eb
+## originally built with EB 4.8.2; PR 19820 included since EB 4.9.1
+##  - BWA-0.7.17-20220923-GCCcore-12.3.0.eb:
+##      options:
+##        from-pr: 19820
+#  - BWA-0.7.17-20220923-GCCcore-12.3.0.eb