diff --git a/EESSI-extend-easybuild.eb b/EESSI-extend-easybuild.eb
index 85113e84..1aa8be4e 100644
--- a/EESSI-extend-easybuild.eb
+++ b/EESSI-extend-easybuild.eb
@@ -176,7 +176,8 @@ end
 setenv ("EASYBUILD_SYSROOT", sysroot)
 setenv ("EASYBUILD_PREFIX", pathJoin(working_dir, "easybuild"))
 setenv ("EASYBUILD_INSTALLPATH", easybuild_installpath)
-setenv ("EASYBUILD_HOOKS", pathJoin(os.getenv("EESSI_PREFIX"), "init", "easybuild", "eb_hooks.py"))
+eessi_init_prefix = os.getenv("EESSI_INIT_PREFIX") or pathJoin(os.getenv("EESSI_PREFIX"), "init")
+setenv ("EASYBUILD_HOOKS", pathJoin(eessi_init_prefix, "easybuild", "eb_hooks.py"))
 
 -- Make sure to use the general umask that allows a global read
 setenv ("EASYBUILD_UMASK", "022")
diff --git a/init/eessi_defaults b/init/eessi_defaults
index 4b0c9e9d..f8265347 100644
--- a/init/eessi_defaults
+++ b/init/eessi_defaults
@@ -10,19 +10,32 @@
 
 export EESSI_VERSION_DEFAULT='__EESSI_VERSION_DEFAULT__'
 
-# use different defaults for RISC-V, as we want to redirect to the riscv.eessi.io repo
+# use different defaults for RISC-V clients
 if [[ $(uname -m) == "riscv64" ]]; then
-    export EESSI_CVMFS_REPO="${EESSI_CVMFS_REPO_OVERRIDE:=/cvmfs/riscv.eessi.io}"
-    export EESSI_VERSION="${EESSI_VERSION_OVERRIDE:=20240402}"
-    if [[ -z ${EESSI_SILENT+x} ]]; then
-        echo "RISC-V architecture detected, but there is no RISC-V support yet in the production repository."
-        echo "Automatically switching to version ${EESSI_VERSION} of the RISC-V development repository ${EESSI_CVMFS_REPO}."
-        echo "For more details about this repository, see https://www.eessi.io/docs/repositories/riscv.eessi.io/."
-        echo ""
+    export EESSI_VERSION="${EESSI_VERSION_OVERRIDE:-${EESSI_VERSION_DEFAULT}}"
+    if [[ "${EESSI_VERSION}" == "2023.06" ]] || [[ "${EESSI_VERSION}" == "20240402" ]]; then
+        export EESSI_VERSION="${EESSI_VERSION_OVERRIDE:=20240402}"
+        export EESSI_CVMFS_REPO="${EESSI_CVMFS_REPO_OVERRIDE:=/cvmfs/riscv.eessi.io}"
+        export EESSI_INIT_PREFIX="${EESSI_CVMFS_REPO}/versions/${EESSI_VERSION}/init"
+        if [[ -z ${EESSI_SILENT+x} ]]; then
+            echo "RISC-V architecture detected, but there is no RISC-V support yet in the production repository."
+            echo "Automatically switching to version ${EESSI_VERSION} of the RISC-V development repository ${EESSI_CVMFS_REPO}."
+            echo "For more details about this repository, see https://www.eessi.io/docs/repositories/riscv.eessi.io/."
+            echo ""
+        fi
+    elif [[ "${EESSI_VERSION_DEFAULT}" == "2025.06" ]]; then
+        export EESSI_CVMFS_REPO="${EESSI_CVMFS_REPO_OVERRIDE:=/cvmfs/dev.eessi.io/riscv}"
+        export EESSI_COMPAT_LAYER_DIR="/cvmfs/software.eessi.io/versions/${EESSI_VERSION_DEFAULT}/compat/linux/$(uname -m)"
+        export EESSI_INIT_PREFIX="/cvmfs/software.eessi.io/versions/${EESSI_VERSION_DEFAULT}/init"
+        if [[ -z ${EESSI_SILENT+x} ]]; then
+            echo "This EESSI production version only provides a RISC-V compatibility layer,"
+            echo "software installations are provided by the EESSI development repository at ${EESSI_CVMFS_REPO}."
+        fi
     fi
 else
     export EESSI_CVMFS_REPO="${EESSI_CVMFS_REPO_OVERRIDE:=/cvmfs/software.eessi.io}"
     export EESSI_VERSION="${EESSI_VERSION_OVERRIDE:=${EESSI_VERSION_DEFAULT}}"
+    export EESSI_INIT_PREFIX="${EESSI_CVMFS_REPO}/versions/${EESSI_VERSION}/init"
 fi
 # use archdetect by default, unless otherwise specified
 export EESSI_USE_ARCHDETECT="${EESSI_USE_ARCHDETECT:=1}"
diff --git a/init/modules/EESSI/2023.06.lua b/init/modules/EESSI/2023.06.lua
index d8a83efb..2ddcf194 100644
--- a/init/modules/EESSI/2023.06.lua
+++ b/init/modules/EESSI/2023.06.lua
@@ -15,7 +15,7 @@ local eessi_version = myModuleVersion()
 local eessi_repo = "/cvmfs/software.eessi.io"
 local eessi_prefix = pathJoin(eessi_repo, "versions", eessi_version)
 local eessi_compat_prefix = pathJoin(eessi_prefix, "compat")
-local eessi_archdetect_prefix = pathJoin(eessi_prefix, "init")
+local eessi_init_prefix = pathJoin(eessi_prefix, "init")
 local eessi_os_type = "linux"
 -- for RISC-V clients we need to do some overrides, as things are stored in different CVMFS repositories
 if (subprocess("uname -m"):gsub("\n$","") == "riscv64") then
@@ -53,7 +53,7 @@ function eessiDebug(text)
     end
 end
 function archdetect_cpu()
-    local script = pathJoin(eessi_archdetect_prefix, 'lmod_eessi_archdetect_wrapper.sh')
+    local script = pathJoin(eessi_init_prefix, 'lmod_eessi_archdetect_wrapper.sh')
     -- make sure that we grab the value for architecture before the module unsets the environment variable (in unload mode)
     local archdetect_options = os.getenv("EESSI_ARCHDETECT_OPTIONS") or (os.getenv("EESSI_ARCHDETECT_OPTIONS_OVERRIDE") or "")
     if not os.getenv("EESSI_ARCHDETECT_OPTIONS_OVERRIDE") then
@@ -83,7 +83,7 @@ function archdetect_cpu()
     end
 end
 function archdetect_accel()
-    local script = pathJoin(eessi_archdetect_prefix, 'lmod_eessi_archdetect_wrapper_accel.sh')
+    local script = pathJoin(eessi_init_prefix, 'lmod_eessi_archdetect_wrapper_accel.sh')
     -- for unload mode, we need to grab the value before it is unset
     local archdetect_accel = os.getenv("EESSI_ACCEL_SUBDIR") or (os.getenv("EESSI_ACCELERATOR_TARGET_OVERRIDE") or "")
     if not os.getenv("EESSI_ACCELERATOR_TARGET_OVERRIDE") then
@@ -131,6 +131,8 @@ setenv("EESSI_SOFTWARE_SUBDIR", eessi_software_subdir)
 eessiDebug("Setting EESSI_SOFTWARE_SUBDIR to " .. eessi_software_subdir)
 setenv("EESSI_PREFIX", eessi_prefix)
 eessiDebug("Setting EESSI_PREFIX to " .. eessi_prefix)
+setenv("EESSI_INIT_PREFIX", eessi_init_prefix)
+eessiDebug("Setting EESSI_INIT_PREFIX to " .. eessi_init_prefix)
 setenv("EESSI_EPREFIX", eessi_eprefix)
 eessiDebug("Setting EPREFIX to " .. eessi_eprefix)
 prepend_path("PATH", pathJoin(eessi_eprefix, "bin"))
diff --git a/run_in_compat_layer_env.sh b/run_in_compat_layer_env.sh
index 188420e6..5966a651 100755
--- a/run_in_compat_layer_env.sh
+++ b/run_in_compat_layer_env.sh
@@ -56,6 +56,9 @@ fi
 if [ ! -z ${EASYBUILD_ROBOT_PATHS} ]; then
     INPUT="export EASYBUILD_ROBOT_PATHS=${EASYBUILD_ROBOT_PATHS}; ${INPUT}"
 fi
+if [ ! -z ${EESSI_INIT_PREFIX} ]; then
+    INPUT="export EESSI_INIT_PREFIX=${EESSI_INIT_PREFIX}; ${INPUT}"
+fi
 
 echo "Running '${INPUT}' in EESSI (${EESSI_CVMFS_REPO}) ${EESSI_VERSION} compatibility layer environment..."
 ${EESSI_COMPAT_LAYER_DIR}/startprefix <<< "${INPUT}"