diff --git a/.test.env b/.test.env
index aeb3a2a..14fd82c 100644
--- a/.test.env
+++ b/.test.env
@@ -7,3 +7,8 @@ LDAP_BIND_DN=cn=admin,dc=sram,dc=tld
 LDAP_SIZELIMIT=5
 
 SBS_API_RECORDING=Yes
+SBS_URL=http://localhost:3000
+SBS_USER=sysread
+SBS_PASS=secret
+
+CONTAINER_TOOL=podman
diff --git a/Makefile b/Makefile
index 41a906d..942f36d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,15 @@
 # Makefile
 
+include .test.env
+export $(shell sed 's/=.*//' .test.env)
+
+# Set CONTAINER_TOOL to 'docker' if not defined in .test.env
+CONTAINER_TOOL ?= dockers
+
 all: pytest
 
 image:
-	docker build -t plsc .
+	$(CONTAINER_TOOL) build -t plsc .
 
 ldap_start:
 	etc/ldap_start.sh
@@ -15,6 +21,6 @@ ldap_stop:
 	etc/ldap_stop.sh
 
 pytest: image ldap_start
-	docker run --rm -ti --network host --volume ${PWD}/api:/opt/plsc/api plsc pytest
+	$(CONTAINER_TOOL) run --rm -ti --network host --volume ${PWD}/api:/opt/plsc/api plsc pytest
 
 clean: ldap_stop
diff --git a/README.md b/README.md
index 3f17e93..8c23197 100644
--- a/README.md
+++ b/README.md
@@ -99,6 +99,8 @@ SBS_USER=sysread
 SBS_PASS=secret
 SBS_API_RECORDING=Yes
 SBS_VERIFY_SSL=Yes
+
+CONTAINER_TOOL=docker
 ```
 
 You have the option to run against an operational instance of SBS by specifing the **SBS_URL** and **SBS_USER** /**SBS_PASS** constants as shown above. If you do not want to access an SBS instance, just leave these constant out.
@@ -108,6 +110,14 @@ In case you are testing against an operational SBS instance, you have the option
 
 When you omit the **SBS_URL** variable, the tests will run API requests agains the contents off this local **./api/...** directory
 
+You may choose to use a different tool than **docker** to run build/run the containers, for example if you want to use **podman** then simply set:
+
+```
+...
+CONTAINER_TOOL=podman
+...
+```
+
 When all these preperations are completed, you can now run the tests:
 
 ```bash
diff --git a/etc/ldap_show.sh b/etc/ldap_show.sh
index 685e655..f58a9c5 100755
--- a/etc/ldap_show.sh
+++ b/etc/ldap_show.sh
@@ -6,6 +6,7 @@ else
   source .test.env
 fi
 
+CONTAINER_TOOL=${CONTAINER_TOOL:-docker}
 
 # Display result...
-docker exec my-ldap ldapsearch -x -H ldap://localhost -b "${LDAP_BASE_DN:-dc=example,dc=org}"
+$CONTAINER_TOOL exec my-ldap ldapsearch -x -H ldap://localhost -b "${LDAP_BASE_DN:-dc=example,dc=org}"
diff --git a/etc/ldap_start.sh b/etc/ldap_start.sh
index 0193109..4b9c27c 100755
--- a/etc/ldap_start.sh
+++ b/etc/ldap_start.sh
@@ -6,10 +6,12 @@ else
   source .test.env
 fi
 
+CONTAINER_TOOL=${CONTAINER_TOOL:-docker}
+
 etc/ldap_stop.sh 2>&1 >/dev/null
 
 # Start LDAP server and record pid
-docker run \
+$CONTAINER_TOOL run \
   --name my-ldap \
   --env LDAP_DOMAIN="${LDAP_DOMAIN:-example.org}" \
   --env LDAP_BASE_DN="${LDAP_BASE_DN:-dc=example,dc=org}" \
@@ -22,14 +24,14 @@ docker run \
   osixia/openldap:latest --loglevel debug --copy-service
 
 # copy LDIF files into running container...
-docker cp etc/ldif my-ldap:/tmp
+$CONTAINER_TOOL cp etc/ldif my-ldap:/tmp
 
 sleep 5
 
 # Add schemas
-docker exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/access.ldif
-docker exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/config.ldif
-docker exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/eduPerson.ldif
-docker exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w  "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/voPerson.ldif
-docker exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w  "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/groupOfMembers.ldif
-docker exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w  "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/sramPerson.ldif
\ No newline at end of file
+$CONTAINER_TOOL exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/access.ldif
+$CONTAINER_TOOL exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/config.ldif
+$CONTAINER_TOOL exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/eduPerson.ldif
+$CONTAINER_TOOL exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w  "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/voPerson.ldif
+$CONTAINER_TOOL exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w  "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/groupOfMembers.ldif
+$CONTAINER_TOOL exec my-ldap ldapadd -H ldap://localhost -D cn=admin,cn=config -w  "${LDAP_CONFIG_PASSWORD:-changeme}" -f /tmp/ldif/sramPerson.ldif
\ No newline at end of file
diff --git a/etc/ldap_stop.sh b/etc/ldap_stop.sh
index 27445c3..9a2666b 100755
--- a/etc/ldap_stop.sh
+++ b/etc/ldap_stop.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
 
+
+CONTAINER_TOOL=${CONTAINER_TOOL:-docker}
+
 # Kill previous server
-docker stop my-ldap
+$CONTAINER_TOOL stop my-ldap
diff --git a/plsc_ordered.py b/plsc_ordered.py
index dc52b52..7fc8242 100755
--- a/plsc_ordered.py
+++ b/plsc_ordered.py
@@ -75,28 +75,7 @@ def sbs2ldap_record(sbs_uid: str, sbs_user: SBSPerson) -> Tuple[str, LDAPEntry]:
         record['objectClass'].append('ldapPublicKey')
 
     record['voPersonStatus'] = [sbs_user.get('status', 'undefined')]
-
-    # sramPerson attributes
-    lld = sbs_user.get('last_login_date')
-    if not lld or lld == "None":
-        lld = "1970-01-01 00:00:00"
-
-    last_login_date = datetime.datetime.strptime(lld + "+0000", '%Y-%m-%d %H:%M:%S%z')
-    now = datetime.datetime.now().astimezone()
-    inactive_days = (now - last_login_date).days
-
-    def res(days, interval):
-        (div, mod) = divmod(days, interval)
-        return div * interval
-
-    if inactive_days >= YEAR:
-        inactive_days = res(inactive_days, YEAR)
-    elif inactive_days >= MONTH:
-        inactive_days = res(inactive_days, MONTH)
-    elif inactive_days >= WEEK:
-        inactive_days = res(inactive_days, WEEK)
-
-    record['sramInactiveDays'] = [inactive_days]
+    record['sramInactiveDays'] = [sbs_user.get('sram_inactive_days', 'undefined')]
 
     # clean up the lists, such that we return empty lists if no attribute is present, rather than [None]
     for key, val in record.items():
diff --git a/tests/test_all.py b/tests/test_all.py
index d59bfe9..bc41cd1 100644
--- a/tests/test_all.py
+++ b/tests/test_all.py
@@ -63,6 +63,14 @@ def check_people(rdn, people, context_checks):
                     self.assertTrue('ldapPublicKey' in user_object[list(user_object)[0]]['objectClass'])
                     self.assertTrue('sshPublicKey' in user_object[list(user_object)[0]].keys())
 
+                # Check sram inactive days
+                if u['user'].get('sram_inactive_days', None):
+                    self.assertTrue('sramInactiveDays' in user_object[list(user_object)[0]].keys())
+                    self.assertEqual(
+                        user_object[list(user_object)[0]]['sramInactiveDays'],
+                        [str(u['user']['sram_inactive_days'])]
+                    )
+
                 # Here a sequence of function can be initiated to verify this person in a particular context
                 for f in context_checks:
                     f(u, user_object)