diff --git a/backend/.coveragerc b/backend/.coveragerc
new file mode 100644
index 0000000..0a14deb
--- /dev/null
+++ b/backend/.coveragerc
@@ -0,0 +1,7 @@
+[run]
+omit = */migrations/*
+
+[paths]
+source =
+    apps/
+    config/
diff --git a/backend/.pre-commit-config.yaml b/backend/.pre-commit-config.yaml
index 5075b52..de32a8a 100644
--- a/backend/.pre-commit-config.yaml
+++ b/backend/.pre-commit-config.yaml
@@ -5,9 +5,16 @@ repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.4.0
     hooks:
-      - id: check-yaml
-      - id: end-of-file-fixer
       - id: trailing-whitespace
+      #  - id: end-of-file-fixer
+      - id: check-yaml
+      - id: debug-statements
+
+  - repo: https://github.com/psf/black
+    rev: 23.7.0
+    hooks:
+      - id: black
+        files: ^backend/
   - repo: https://github.com/pre-commit/mirrors-mypy
     rev: 'v1.5.1'
     hooks:
diff --git a/backend/Dockerfile b/backend/Dockerfile
index ae7e0e0..d611fc9 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -13,4 +13,4 @@ EXPOSE 8000
 
 RUN ["chmod", "+x", "./entrypoint.sh"]
 
-CMD "./entrypoint.sh"
\ No newline at end of file
+CMD "./entrypoint.sh"
diff --git a/backend/authentication/tests.py b/backend/authentication/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/backend/authentication/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/backend/authentication/views.py b/backend/authentication/views.py
index 9c58df9..d48ebb2 100644
--- a/backend/authentication/views.py
+++ b/backend/authentication/views.py
@@ -1,10 +1,4 @@
-import http
-
-import jwt
-from rest_framework.response import Response
-from rest_framework.views import APIView
 from rest_framework_simplejwt.views import TokenObtainPairView
-from django.contrib.auth import authenticate, login
 
 from authentication.serializers import TokenSerializer
 
diff --git a/backend/core/models.py b/backend/core/models.py
index 5fa2dfd..763ce3e 100644
--- a/backend/core/models.py
+++ b/backend/core/models.py
@@ -1,15 +1,15 @@
-from django.db import models
 from uuid import uuid4
 
+from django.db import models
+
 
 class BaseModel(models.Model):
-    uuid = models.UUIDField(
-        primary_key=True,
-        default=uuid4,
-        editable=False)
-    created_date = models.DateTimeField(auto_now_add=True)
-    updated_date = models.DateTimeField(auto_now=True)
-    is_deleted = models.BooleanField(default=False)
+    uuid: models.UUIDField = models.UUIDField(
+        primary_key=True, default=uuid4, editable=False
+    )
+    created_date: models.DateTimeField = models.DateTimeField(auto_now_add=True)
+    updated_date: models.DateTimeField = models.DateTimeField(auto_now=True)
+    is_deleted: models.BooleanField = models.BooleanField(default=False)
 
     class Meta:
-        abstract = True
\ No newline at end of file
+        abstract = True
diff --git a/backend/core/settings.py b/backend/core/settings.py
index 17496c8..1e88bf0 100644
--- a/backend/core/settings.py
+++ b/backend/core/settings.py
@@ -79,22 +79,26 @@
     },
 ]
 
+PASSWORD_HASHERS = ("django.contrib.auth.hashers.MD5PasswordHasher",)
+
 WSGI_APPLICATION = "core.wsgi.application"
 
 # Database
 # https://docs.djangoproject.com/en/4.1/ref/settings/#databases
 
 DATABASES = {
+    # "default": {
+    #     "ENGINE": "django.db.backends.postgresql_psycopg2",
+    #     "NAME": os.environ.get("DB_NAME", "photo-library-ns"),
+    #     "USER": os.environ.get("DB_USER", "photo-library-ns"),
+    #     "PASSWORD": os.environ.get("DB_PASSWORD", "photo-library-ns#01"),
+    #     "HOST": os.environ.get("DB_HOST", "db"),
+    #     "PORT": os.environ.get("DB_PORT", "5432"),
+    # },
     "default": {
-        "ENGINE": "django.db.backends.postgresql_psycopg2",
-        "NAME": os.environ.get("DB_NAME", ""),
-        "USER": os.environ.get("DB_USER", ""),
-        "PASSWORD": os.environ.get("DB_PASSWORD", ""),
-        "HOST": os.environ.get("DB_HOST", ""),
-        "PORT": os.environ.get("DB_PORT", "5432"),
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": BASE_DIR / "db.sqlite3",
     },
-
-    "default": {"ENGINE": "django.db.backends.sqlite3", "NAME": BASE_DIR / "db.sqlite3"}
 }
 
 # Password validation
@@ -129,8 +133,10 @@
 
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/4.1/howto/static-files/
-STATIC_URL = "/staticfiles/"
-STATIC_ROOT = os.path.join(BASE_DIR, "staticfiles")
+STATIC_URL = "/static/"
+STATICFILES_DIRS = [
+    os.path.join(BASE_DIR, "static"),
+]
 
 MEDIA_URL = "/media/"
 
@@ -142,7 +148,7 @@
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
 
 REST_FRAMEWORK = {
-     "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.PageNumberPagination",
+    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.PageNumberPagination",
     "PAGE_SIZE": 9999,
     "DEFAULT_PERMISSION_CLASSES": [
         "rest_framework.permissions.IsAuthenticated",
diff --git a/backend/core/settings_test.py b/backend/core/settings_test.py
new file mode 100644
index 0000000..ca40e54
--- /dev/null
+++ b/backend/core/settings_test.py
@@ -0,0 +1,17 @@
+DATABASES = {
+    "default": {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": ":memory:",
+    }
+}
+
+MIDDLEWARE_CLASSES = [
+    "django.contrib.sessions.middleware.SessionMiddleware",
+    "django.middleware.csrf.CsrfViewMiddleware",
+    "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "django.contrib.messages.middleware.MessageMiddleware",
+]
+
+DEBUG = False
+
+EMAIL_BACKEND = "django.core.mail.backends.dummy.EmailBackend"
diff --git a/backend/entrypoint.sh b/backend/entrypoint.sh
index b1b8593..8a6b676 100644
--- a/backend/entrypoint.sh
+++ b/backend/entrypoint.sh
@@ -1,13 +1,14 @@
 #!/bin/bash
 
-# Collect static files
+
+echo "Migrations"
+python3 manage.py migrate --no-input
+
 echo "Collect static files"
 python3 manage.py collectstatic --no-input
 
-# Start server
 echo "Starting server"
 # python3 manage.py runserver 0.0.0.0:8000
 gunicorn --config gunicorn-cfg.py core.wsgi
 
 exec "$@"
-
diff --git a/backend/enviroments.env b/backend/enviroments.env
index 5929f52..e482f49 100644
--- a/backend/enviroments.env
+++ b/backend/enviroments.env
@@ -8,4 +8,3 @@ DB_USER=s208
 DB_PASSWORD=C6A2_ff8d9d
 DB_HOST=psql01.mikr.us
 DB_PORT=5432
-
diff --git a/backend/history/tests.py b/backend/history/tests.py
deleted file mode 100644
index 7ce503c..0000000
--- a/backend/history/tests.py
+++ /dev/null
@@ -1,3 +0,0 @@
-from django.test import TestCase
-
-# Create your tests here.
diff --git a/backend/mypy.ini b/backend/mypy.ini
index af3d98a..30bc736 100644
--- a/backend/mypy.ini
+++ b/backend/mypy.ini
@@ -1,10 +1,7 @@
 [mypy]
-# results.
 python_version = 3.11
 
-plugins =
-    mypy_django_plugin.main,
-    mypy_drf_plugin.main
+plugins = mypy_django_plugin.main, mypy_drf_plugin.main
 
 ignore_missing_imports = True
 warn_unused_ignores = True
@@ -15,12 +12,3 @@ exclude = venv
 [mypy.plugins.django-stubs]
 django_settings_module = "core.settings"
 namespace_packages = True
-
-[mypy-*.migrations.*]
-ignore_errors = True
-
-[mypy-tests.*]
-disallow_untyped_defs = False
-
-[mypy_django_plugin]
-ignore_missing_model_attributes = True
diff --git a/backend/photos/admin.py b/backend/photos/admin.py
index 08a7e6f..09e6f62 100644
--- a/backend/photos/admin.py
+++ b/backend/photos/admin.py
@@ -3,15 +3,13 @@
 from photos.models import Photo, PhotoPositions
 
 
+@admin.register(Photo)
 class PhotoAdmin(admin.ModelAdmin):
     date_hierarchy = "created_date"
     list_display = ["uuid", "status", "photo", "created_date", "column_id", "order"]
 
 
+@admin.register(PhotoPositions)
 class PhotoPositionsAdmin(admin.ModelAdmin):
     date_hierarchy = "created_date"
     list_display = ["uuid", "created_date"]
-
-
-admin.site.register(Photo, PhotoAdmin)
-admin.site.register(PhotoPositions, PhotoPositionsAdmin)
diff --git a/backend/photos/models.py b/backend/photos/models.py
index 612cfec..3c38680 100644
--- a/backend/photos/models.py
+++ b/backend/photos/models.py
@@ -13,7 +13,7 @@ def upload_to(instance, filename):
 
 
 class PhotoPositions(BaseModel):
-    columns = models.JSONField(null=True)
+    columns: models.JSONField = models.JSONField(null=True)
 
 
 class Photo(BaseModel):
@@ -22,15 +22,17 @@ class Photo(BaseModel):
         (POSITIONED, "positioned at last configuration"),
         (UNPOSITIONED, "not positioned"),
     ]
-    photo = models.ImageField(
+    photo: models.ImageField = models.ImageField(
         upload_to=upload_to,
         max_length=100,
         verbose_name="photos",
         validators=[FileExtensionValidator(["jpg", "jpeg"])],
     )
-    column_id = models.IntegerField(default=1)
-    order = models.IntegerField(default=0)
-    status = models.CharField(choices=STATUS_PHOTO, max_length=20, default=NEW)
+    column_id: models.IntegerField = models.IntegerField(default=1)
+    order: models.IntegerField = models.IntegerField(default=0)
+    status: models.CharField = models.CharField(
+        choices=STATUS_PHOTO, max_length=20, default=NEW
+    )
 
     def __str__(self):
         return f"{self.uuid} - {self.photo}"
diff --git a/backend/photos/tests.py b/backend/photos/tests.py
deleted file mode 100644
index a39b155..0000000
--- a/backend/photos/tests.py
+++ /dev/null
@@ -1 +0,0 @@
-# Create your tests here.
diff --git a/backend/photos/tests/__init__.py b/backend/photos/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/photos/tests/factory.py b/backend/photos/tests/factory.py
new file mode 100644
index 0000000..6122cd9
--- /dev/null
+++ b/backend/photos/tests/factory.py
@@ -0,0 +1,40 @@
+import json
+
+from factory import LazyFunction
+from factory.django import DjangoModelFactory
+from faker import Faker
+from faker.providers import file, misc, date_time
+
+from photos.models import Photo, PhotoPositions
+
+faker = Faker()
+faker.add_provider(file)
+faker.add_provider(misc)
+faker.add_provider(date_time)
+
+STATUS = [x[0] for x in Photo.STATUS_PHOTO]
+
+
+class PhotoFactory(DjangoModelFactory):
+    uuid = LazyFunction(lambda: faker.uuid4())
+    photo = LazyFunction(lambda: faker.file_path(depth=3, extension="jpg"))
+    column_id = LazyFunction(lambda: faker.random_int(min=0, max=3))
+    order = LazyFunction(lambda: faker.random_int())
+    status = LazyFunction(lambda: faker.random_choices(elements=STATUS))
+    created_date = LazyFunction(lambda: faker.date_time())
+
+    class Meta:
+        model = Photo
+
+
+class PhotoPositionsFactory(DjangoModelFactory):
+    columns = LazyFunction(
+        lambda: {
+            "1": json.dumps([PhotoFactory.build() for _ in range(faker.random_int())]),
+            "2": json.dumps([PhotoFactory.build() for _ in range(faker.random_int())]),
+            "3": json.dumps([PhotoFactory.build() for _ in range(faker.random_int())]),
+        }
+    )
+
+    class Meta:
+        model = PhotoPositions
diff --git a/backend/photos/tests/test_models.py b/backend/photos/tests/test_models.py
new file mode 100644
index 0000000..ea54070
--- /dev/null
+++ b/backend/photos/tests/test_models.py
@@ -0,0 +1,23 @@
+import datetime
+
+import pytest
+from django.db.models.fields.files import ImageFieldFile
+
+from photos.models import Photo
+from photos.tests.factory import PhotoFactory
+
+
+@pytest.mark.django_db
+class TestPhoto:
+    @pytest.fixture
+    def photo(self):
+        return PhotoFactory.create()
+
+    def test_instance_photo(self, photo):
+        assert isinstance(photo, Photo)
+        assert isinstance(photo.uuid, str)
+        assert isinstance(photo.photo, ImageFieldFile)
+        assert isinstance(photo.column_id, int)
+        assert isinstance(photo.status, list)
+        assert isinstance(photo.order, int)
+        assert isinstance(photo.created_date, datetime.datetime)
diff --git a/backend/photos/tests/test_services.py b/backend/photos/tests/test_services.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/pytest.ini b/backend/pytest.ini
new file mode 100644
index 0000000..9f809d1
--- /dev/null
+++ b/backend/pytest.ini
@@ -0,0 +1,6 @@
+[pytest]
+DJANGO_SETTINGS_MODULE = core.settings
+
+python_files = tests.py test_*.py *_tests.py
+addopts = -s -q --disable-warnings --doctest-modules
+norecursedirs = .git .cache tmp*
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 444b140..3d73232 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -1,15 +1,42 @@
 asgiref==3.6.0
+certifi==2023.7.22
+charset-normalizer==3.2.0
+coverage==7.3.0
 Django==4.1.7
 django-cors-headers==3.14.0
 django-environ==0.10.0
 django-rest-framework==0.1.0
+django-stubs==4.2.3
+django-stubs-ext==4.2.2
 djangorestframework==3.14.0
 djangorestframework-simplejwt==5.2.2
+djangorestframework-stubs==3.14.2
+Faker==12.0.1
 gunicorn==21.2.0
+idna==3.4
+iniconfig==2.0.0
+mixer==7.2.2
+mypy==1.5.1
+mypy-extensions==1.0.0
 packaging==23.1
 Pillow==10.0.0
+pluggy==1.2.0
 psycopg2-binary==2.9.6
 PyJWT==2.7.0
+pytest==7.4.0
+pytest-cov==4.1.0
+pytest-django==4.5.2
+pytest-sugar==0.9.7
+python-dateutil==2.8.2
 pytz==2023.3
+requests==2.31.0
+six==1.16.0
 sqlparse==0.4.3
+termcolor==2.3.0
+types-pytz==2023.3.0.1
+types-PyYAML==6.0.12.11
+types-requests==2.31.0.2
+types-urllib3==1.26.25.14
+typing_extensions==4.7.1
+urllib3==2.0.4
 whitenoise==6.5.0
diff --git a/docker-compose.yml b/docker-compose.yml
index 3c09124..b75004d 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -13,8 +13,8 @@ services:
       - static:/code/static/
     ports:
       - "8080:8000"
-    env_file:
-      - environments.env
+    depends_on:
+      - db
 
   frontend:
     build:
@@ -23,8 +23,18 @@ services:
       - "88:80"
     depends_on:
       - backend
-    env_file:
-      - environments.env
+
+  db:
+    image: postgres:13-alpine
+    environment:
+      - POSTGRES_DB=photo-library-ns
+      - POSTGRES_USER=photo-library-ns
+      - POSTGRES_PASSWORD=photo-library-ns#01
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres-db:/var/lib/postgresql/data
+
   app:
     image: 'jc21/nginx-proxy-manager:latest'
     container_name: nginxproxymanager
@@ -43,4 +53,4 @@ services:
 volumes:
   media:
   static:
-
+  postgres-db: