diff --git a/mpsd-software-environment.py b/mpsd-software-environment.py
index 287216c5584b3750090f130cd716a935e262f57c..c3740271d58f3e2eef5ae9fd2f2eb5aaaff5f9dc 100755
--- a/mpsd-software-environment.py
+++ b/mpsd-software-environment.py
@@ -46,7 +46,7 @@ config_vars = {
 
 def create_log_file_names(
     mpsd_release: str,
-    mpsd_microarch: str,
+    sys_microarch: str,
     action: str,
     date: str = call_date_iso,
     toolchain: str = None,
@@ -66,7 +66,7 @@ def create_log_file_names(
     ----------
     mpsd_release : str
         MPSD software stack version
-    mpsd_microarch : str
+    sys_microarch : str
         system architecture
     date : str
         date of the call ins iso format
@@ -89,13 +89,13 @@ def create_log_file_names(
         # if toolchain is given, then  we build the build_log_file_name
         if action in ["install", "remove"]:
             log_file_name = (
-                f"{mpsd_release}_{mpsd_microarch}_{date}_BUILD_{toolchain}_{action}.log"
+                f"{mpsd_release}_{sys_microarch}_{date}_BUILD_{toolchain}_{action}.log"
             )
         else:
             return None
     else:
         # if toolchain is not given, then we build the installer_log_file_name
-        log_file_name = f"{mpsd_release}_{mpsd_microarch}_{date}_APEX_{action}.log"
+        log_file_name = f"{mpsd_release}_{sys_microarch}_{date}_APEX_{action}.log"
 
     return log_file_name
 
@@ -151,11 +151,11 @@ def get_installer_log_file_path(mpsd_release: str, cmd: str, root_dir: str) -> s
     """Get installer log file path."""
     # Get machine configs
     os.environ.get("MPSD_OS", "UNKNOWN_OS")
-    mpsd_microarch = get_native_microarchitecture()
+    sys_microarch = get_native_microarchitecture()
     # parse logging first
     # decide the log_file_name
     installer_log_name = create_log_file_names(
-        mpsd_release=mpsd_release, mpsd_microarch=mpsd_microarch, action=cmd
+        mpsd_release=mpsd_release, sys_microarch=sys_microarch, action=cmd
     )
     log_folder = root_dir / mpsd_release / "logs"
     # if the log_folder dosent exist, dont log this message if
@@ -644,13 +644,13 @@ def prepare_environment(mpsd_release: str, root_dir: Path) -> List[str]:
 def get_native_microarchitecture():
     """Return native microarchitecture.
 
-    On MPSD machines, there should be an environment variable "MPSD_MICROARCH".
+    On MPSD machines, there should be an environment variable "sys_microarch".
     We try to read that. If it fails, we use the 'archspec cpu' command.
     If that fails, we ask the user to install it.
 
     Returns
     -------
-    MPSD_MICROARCH : str
+    sys_microarch : str
 
     Example
     -------
@@ -660,13 +660,13 @@ def get_native_microarchitecture():
     # attempt to get MICRO_ARCH from environment variable (should work on
     # MPSD_HPC and MPSD linux laptops). If not defined, return
     # "UNKNOWN_MICROARCH"
-    microarch = os.environ.get("MPSD_MICROARCH", "UNKNOWN_MICROARCH")
+    microarch = os.environ.get("sys_microarch", "UNKNOWN_MICROARCH")
 
     # if we have not found the microarchitecture environment variable,
     # try calling archspec
     if microarch == "UNKNOWN_MICROARCH":
         logging.debug(
-            "Couldn't find MPSD_MICROARCH environment variable. Will try archspec."
+            "Couldn't find sys_microarch environment variable. Will try archspec."
         )
         try:
             process = run(["archspec", "cpu"], stdout=subprocess.PIPE, text=True)
@@ -741,8 +741,8 @@ def install_environment(
 
     # Set required variables
     release_base_dir = root_dir / mpsd_release
-    mpsd_microarch = get_native_microarchitecture()
-    toolchain_dir = release_base_dir / mpsd_microarch
+    sys_microarch = get_native_microarchitecture()
+    toolchain_dir = release_base_dir / sys_microarch
     toolchain_dir.mkdir(parents=True, exist_ok=True)
     spack_setup_script = release_base_dir / "spack-environments" / "spack_setup.sh"
     install_flags = []
@@ -781,7 +781,7 @@ def install_environment(
         for toolchain in toolchains:
             # Set the install log file name from create_log_file_names
             build_log_file_name = create_log_file_names(
-                mpsd_release, mpsd_microarch, "install", toolchain=toolchain
+                mpsd_release, sys_microarch, "install", toolchain=toolchain
             )
             build_log_folder = release_base_dir / "logs"
             build_log_path = build_log_folder / build_log_file_name
diff --git a/tests.py b/tests.py
index b617ed082876ec292d465e53cf94a797e8086d57..23fddfe287c90ecc25452329f4ce50a6e0777f30 100644
--- a/tests.py
+++ b/tests.py
@@ -228,7 +228,7 @@ def test_install_environment_zlib():
     mpsd_release_to_test = "dev-23a"
     toolchain_to_test = "global_generic"
     cmd_log_file = mod.config_vars["cmd_log_file"]
-    mpsd_microarch = mod.get_native_microarchitecture()
+    sys_microarch = mod.get_native_microarchitecture()
     release_base_dir = root_dir / mpsd_release_to_test
     create_mock_git_repository(target_directory=root_dir, create_directory=False)
     mod.prepare_environment(mpsd_release=mpsd_release_to_test, root_dir=(root_dir))
@@ -283,13 +283,13 @@ def test_install_environment_zlib():
     )
     # test that the build log is created correctly
     # check that a file with glob build_globale_generic_dev-23a*.log exists at
-    # release_base_dir/mpsd_microarch
+    # release_base_dir/sys_microarch
     # print("Debug here ")
     # time.sleep(10)
 
     build_log = list(
         (release_base_dir / "logs").glob(
-            f"{mpsd_release_to_test}_{mpsd_microarch}_*_install.log"
+            f"{mpsd_release_to_test}_{sys_microarch}_*_install.log"
         )
     )
     assert len(build_log) == 2
@@ -312,11 +312,11 @@ def test_install_environment_zlib():
             f"installing {toolchain_to_test} and logging at {str(build_log)}" in lines
         )
     # assert that the module files are created correctly
-    assert os.path.exists(release_base_dir / mpsd_microarch)
-    assert os.path.exists(release_base_dir / mpsd_microarch / "lmod")
+    assert os.path.exists(release_base_dir / sys_microarch)
+    assert os.path.exists(release_base_dir / sys_microarch / "lmod")
     # assert that lmod/module-index.yaml contains zlib
     with open(
-        release_base_dir / mpsd_microarch / "lmod" / "module-index.yaml", "r"
+        release_base_dir / sys_microarch / "lmod" / "module-index.yaml", "r"
     ) as f:
         lines = f.read()
         assert "zlib" in lines
@@ -338,7 +338,7 @@ def test_install_environment_zlib():
     )
     build_log = list(
         (release_base_dir / "logs").glob(
-            f"{mpsd_release_to_test}_{mpsd_microarch}_*_install.log"
+            f"{mpsd_release_to_test}_{sys_microarch}_*_install.log"
         )
     )
     assert len(build_log) == 4
@@ -387,13 +387,13 @@ def test_create_log_file_names():
     """Test that the log file names are created correctly."""
     create_log_file_names = mod.create_log_file_names
     mpsd_release = "dev-23a"
-    mpsd_microarch = "sandybridge"
+    sys_microarch = "sandybridge"
     date = datetime.datetime.now().replace(microsecond=0).isoformat()
     action = "install"
     toolchain = "foss2021a"
     # test build_log_file_name  generation
     build_log_file_name = create_log_file_names(
-        mpsd_microarch=mpsd_microarch,
+        sys_microarch=sys_microarch,
         mpsd_release=mpsd_release,
         date=date,
         action=action,
@@ -401,21 +401,21 @@ def test_create_log_file_names():
     )
     assert (
         build_log_file_name
-        == f"{mpsd_release}_{mpsd_microarch}_{date}_BUILD_{toolchain}_{action}.log"
+        == f"{mpsd_release}_{sys_microarch}_{date}_BUILD_{toolchain}_{action}.log"
     )
     installer_log_file_name = create_log_file_names(
-        mpsd_microarch=mpsd_microarch,
+        sys_microarch=sys_microarch,
         mpsd_release=mpsd_release,
         date=date,
         action=action,
     )
     assert (
         installer_log_file_name
-        == f"{mpsd_release}_{mpsd_microarch}_{date}_APEX_{action}.log"
+        == f"{mpsd_release}_{sys_microarch}_{date}_APEX_{action}.log"
     )
     # test no build log file for incorrect action
     build_log_file_name = create_log_file_names(
-        mpsd_microarch=mpsd_microarch,
+        sys_microarch=sys_microarch,
         mpsd_release=mpsd_release,
         date=date,
         action="status",