diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
new file mode 100644
index 0000000..98c3db8
--- /dev/null
+++ b/.github/workflows/ci-tests.yml
@@ -0,0 +1,59 @@
+name: CI
+on: [push, pull_request]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      NETBOX_CONFIGURATION: netbox.configuration_testing
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.9', '3.10', '3.11']
+    services:
+      redis:
+        image: redis
+        ports:
+          - 6379:6379
+      postgres:
+        image: postgres
+        env:
+          POSTGRES_USER: netbox
+          POSTGRES_PASSWORD: netbox
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
+
+    steps:
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Check out NetBox
+      uses: actions/checkout@v4
+      with:
+        repository: netbox-community/netbox
+        ref: master
+        path: netbox
+
+    - name: Check out repo
+      uses: actions/checkout@v4
+      with:
+        path: netbox-config-backup
+
+    - name: Install dependencies & set up configuration
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r netbox\requirements.txt
+        pip install pycodestyle coverage tblib
+        pip install -e netbox-config-backup
+
+    - name: Run tests
+      run: coverage run --source="netbox-config-backup/" netbox/manage.py test netbox-config-backup/ --parallel
\ No newline at end of file
diff --git a/netbox_config_backup/models/backups.py b/netbox_config_backup/models/backups.py
index 4f2ee6f..dd7828d 100644
--- a/netbox_config_backup/models/backups.py
+++ b/netbox_config_backup/models/backups.py
@@ -49,8 +49,23 @@ class Meta:
         ordering = ['name']
 
     @property
-    def backup_count(self):
-        return self.changes.count()
+    def last_backup(self):
+        return self.jobs.filter(status=JobResultStatusChoices.STATUS_COMPLETED).last().completed
+
+    @property
+    def next_attempt(self):
+        return self.jobs.filter(
+            status__in=[
+                JobResultStatusChoices.STATUS_SCHEDULED,
+                JobResultStatusChoices.STATUS_PENDING,
+                JobResultStatusChoices.STATUS_RUNNING
+            ]
+        ).last().scheduled
+
+    @property
+    def last_change(self):
+
+        return self.changes.last().commit.time
 
     def get_absolute_url(self):
         return reverse('plugins:netbox_config_backup:backup', args=[self.pk])
diff --git a/netbox_config_backup/querysets/__init__.py b/netbox_config_backup/querysets/__init__.py
index 5fe8a17..8f53592 100644
--- a/netbox_config_backup/querysets/__init__.py
+++ b/netbox_config_backup/querysets/__init__.py
@@ -1,4 +1,5 @@
 from django.db import models
+from django.db.models import Count
 
 from extras.choices import JobResultStatusChoices
 from utilities.querysets import RestrictedQuerySet
@@ -9,14 +10,15 @@ class BackupQuerySet(RestrictedQuerySet):
     def default_annotate(self):
         from netbox_config_backup.models import BackupJob, BackupCommitTreeChange
 
-        return self.prefetch_related('jobs').annotate(
-        last_backup=models.Subquery(
-            BackupJob.objects.filter(backup=models.OuterRef('id'), status=JobResultStatusChoices.STATUS_COMPLETED).order_by('completed').values('completed')[:1]
-        ),
-        next_attempt=models.Subquery(
-            BackupJob.objects.filter(backup=models.OuterRef('id'), status__in=['pending', 'running']).order_by('scheduled').values('scheduled')[:1]
-        ),
-        last_change=models.Subquery(
-            BackupCommitTreeChange.objects.filter(backup=models.OuterRef('id')).values('commit__time')[:1]
-        )
-    )
\ No newline at end of file
+        return self.prefetch_related('jobs', 'changes', 'changes__commit')
+        #.annotate(
+        #last_backup=models.Subquery(
+        #    BackupJob.objects.filter(backup=models.OuterRef('id'), status=JobResultStatusChoices.STATUS_COMPLETED).order_by('-completed').values('completed')[:1]
+        #),
+        #next_attempt=models.Subquery(
+        #    BackupJob.objects.filter(backup=models.OuterRef('id'), status__in=['pending', 'running']).order_by('-scheduled').values('scheduled')[:1]
+        #),
+        #last_change=models.Subquery(
+        #    BackupCommitTreeChange.objects.filter(backup=models.OuterRef('id')).order_by('-id').values('commit__time')[:1]
+        #)
+    #)
\ No newline at end of file
diff --git a/netbox_config_backup/tables.py b/netbox_config_backup/tables.py
index 0876bc3..1d49725 100644
--- a/netbox_config_backup/tables.py
+++ b/netbox_config_backup/tables.py
@@ -43,16 +43,23 @@ class BackupTable(BaseTable):
     )
     last_backup = tables.DateTimeColumn()
     next_attempt = tables.DateTimeColumn()
+    last_change = tables.DateTimeColumn()
+    backup_count = tables.Column(
+        accessor='changes'
+    )
 
     class Meta(BaseTable.Meta):
         model = Backup
         fields = (
-            'pk', 'name', 'device', 'last_backup', 'next_attempt', 'backup_count'
+            'pk', 'name', 'device', 'last_backup', 'next_attempt', 'last_change', 'backup_count'
         )
         default_columns = (
             'pk', 'name', 'device', 'last_backup', 'next_attempt', 'backup_count'
         )
 
+    def render_backup_count(self, value):
+        return f'{value.count()}'
+
 
 class BackupsTable(NetBoxTable):
     date = tables.Column(
diff --git a/netbox_config_backup/tests/__init__.py b/netbox_config_backup/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/netbox_config_backup/tests/test_models.py b/netbox_config_backup/tests/test_models.py
new file mode 100644
index 0000000..c609c55
--- /dev/null
+++ b/netbox_config_backup/tests/test_models.py
@@ -0,0 +1,30 @@
+from django.core.exceptions import ValidationError
+from django.test import TestCase
+
+from dcim.models import Site, Manufacturer, DeviceType, DeviceRole, Device, Interface
+from ipam.models import IPAddress
+from netbox_config_backup.models import *
+
+class TestBackup(TestCase):
+
+    @classmethod
+    def setUpTestData(cls):
+
+        site = Site.objects.create(name='Site 1')
+        manufacturer = Manufacturer.objects.create(name='Manufacturer 1')
+        device_type = DeviceType.objects.create(model='Device Type 1', manufacturer=manufacturer)
+        role = DeviceRole.objects.create(name='Switch')
+        device = Device.objects.create(
+            name='Device 1',
+            site=site,
+            device_type=device_type,
+            role=role,
+            status='active'
+        )
+        interface = Interface.objects.create(name='Interface 1', device=device, type='1000baset')
+        address = IPAddress.objects.create(assigned_object=interface, address='10.0.0.1/32')
+        device.primary_ip4 = address
+        device.save()
+
+    def test_create_backup(self):
+        pass