diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 72b07ed..11fc181 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,6 +10,7 @@ python tests:
   stage: test
   variables:
     PIP_CACHE_DIR: "$CI_PROJECT_DIR/.cache/pip"
+    DJANGO_SETTINGS_MODULE: "newsreader.conf.gitlab"
   cache:
     key: "$CI_JOB_NAME-$CI_COMMIT_REF_SLUG"
     paths:
@@ -20,6 +21,6 @@ python tests:
     - source env/bin/activate
     - pip install -r requirements/gitlab.txt
   script:
-    - python src/manage.py test newsreader --settings=newsreader.conf.gitlab
+    - python src/manage.py test newsreader
     - isort -rc src/ --check-only
-    - black -l 100 --check src/
+    - black -l 90 --check src/
diff --git a/.isort.cfg b/.isort.cfg
index fa6fb9b..8d6ccf3 100644
--- a/.isort.cfg
+++ b/.isort.cfg
@@ -1,6 +1,6 @@
 [settings]
 include_trailing_comma = true
-line_length = 100
+line_length = 90
 multi_line_output = 3
 skip = env/, venv/
 default_section = THIRDPARTY
diff --git a/requirements/base.txt b/requirements/base.txt
index 05be61f..c9686ee 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,8 +1,10 @@
 bleach==3.1.0
 beautifulsoup4==4.7.1
+celery==4.3.0
 certifi==2019.3.9
 chardet==3.0.4
 Django==2.2
+django-celery-beat==1.5.0
 djangorestframework==3.9.4
 lxml==4.3.4
 feedparser==5.2.1
diff --git a/src/newsreader/__init__.py b/src/newsreader/__init__.py
index e69de29..c08c1d6 100644
--- a/src/newsreader/__init__.py
+++ b/src/newsreader/__init__.py
@@ -0,0 +1,4 @@
+from .celery import app as celery_app
+
+
+__all__ = ["celery_app"]
diff --git a/src/newsreader/auth/__init__.py b/src/newsreader/accounts/__init__.py
similarity index 100%
rename from src/newsreader/auth/__init__.py
rename to src/newsreader/accounts/__init__.py
diff --git a/src/newsreader/auth/admin.py b/src/newsreader/accounts/admin.py
similarity index 100%
rename from src/newsreader/auth/admin.py
rename to src/newsreader/accounts/admin.py
diff --git a/src/newsreader/accounts/apps.py b/src/newsreader/accounts/apps.py
new file mode 100644
index 0000000..fb0257e
--- /dev/null
+++ b/src/newsreader/accounts/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class AccountsConfig(AppConfig):
+    name = "accounts"
diff --git a/src/newsreader/accounts/migrations/0001_initial.py b/src/newsreader/accounts/migrations/0001_initial.py
new file mode 100644
index 0000000..1f58ca8
--- /dev/null
+++ b/src/newsreader/accounts/migrations/0001_initial.py
@@ -0,0 +1,151 @@
+# Generated by Django 2.2 on 2019-07-14 10:36
+
+import django.contrib.auth.models
+import django.contrib.auth.validators
+import django.utils.timezone
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ("auth", "0011_update_proxy_permissions"),
+        ("django_celery_beat", "0011_auto_20190508_0153"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="User",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("password", models.CharField(max_length=128, verbose_name="password")),
+                (
+                    "last_login",
+                    models.DateTimeField(
+                        blank=True, null=True, verbose_name="last login"
+                    ),
+                ),
+                (
+                    "is_superuser",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Designates that this user has all permissions without explicitly assigning them.",
+                        verbose_name="superuser status",
+                    ),
+                ),
+                (
+                    "username",
+                    models.CharField(
+                        error_messages={
+                            "unique": "A user with that username already exists."
+                        },
+                        help_text="Required. 150 characters or fewer. Letters, digits and @/./+/-/_ only.",
+                        max_length=150,
+                        unique=True,
+                        validators=[
+                            django.contrib.auth.validators.UnicodeUsernameValidator()
+                        ],
+                        verbose_name="username",
+                    ),
+                ),
+                (
+                    "first_name",
+                    models.CharField(
+                        blank=True, max_length=30, verbose_name="first name"
+                    ),
+                ),
+                (
+                    "last_name",
+                    models.CharField(
+                        blank=True, max_length=150, verbose_name="last name"
+                    ),
+                ),
+                (
+                    "is_staff",
+                    models.BooleanField(
+                        default=False,
+                        help_text="Designates whether the user can log into this admin site.",
+                        verbose_name="staff status",
+                    ),
+                ),
+                (
+                    "is_active",
+                    models.BooleanField(
+                        default=True,
+                        help_text="Designates whether this user should be treated as active. Unselect this instead of deleting accounts.",
+                        verbose_name="active",
+                    ),
+                ),
+                (
+                    "date_joined",
+                    models.DateTimeField(
+                        default=django.utils.timezone.now, verbose_name="date joined"
+                    ),
+                ),
+                (
+                    "email",
+                    models.EmailField(
+                        max_length=254, unique=True, verbose_name="email address"
+                    ),
+                ),
+                (
+                    "groups",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="The groups this user belongs to. A user will get all permissions granted to each of their groups.",
+                        related_name="user_set",
+                        related_query_name="user",
+                        to="auth.Group",
+                        verbose_name="groups",
+                    ),
+                ),
+                (
+                    "task",
+                    models.ForeignKey(
+                        blank=True,
+                        editable=False,
+                        null=True,
+                        on_delete="collection task",
+                        to="django_celery_beat.PeriodicTask",
+                    ),
+                ),
+                (
+                    "task_interval",
+                    models.ForeignKey(
+                        blank=True,
+                        null=True,
+                        on_delete="collection schedule",
+                        to="django_celery_beat.IntervalSchedule",
+                    ),
+                ),
+                (
+                    "user_permissions",
+                    models.ManyToManyField(
+                        blank=True,
+                        help_text="Specific permissions for this user.",
+                        related_name="user_set",
+                        related_query_name="user",
+                        to="auth.Permission",
+                        verbose_name="user permissions",
+                    ),
+                ),
+            ],
+            options={
+                "verbose_name": "user",
+                "verbose_name_plural": "users",
+                "abstract": False,
+            },
+            managers=[("objects", django.contrib.auth.models.UserManager())],
+        )
+    ]
diff --git a/src/newsreader/accounts/migrations/0002_remove_user_username.py b/src/newsreader/accounts/migrations/0002_remove_user_username.py
new file mode 100644
index 0000000..b6848a3
--- /dev/null
+++ b/src/newsreader/accounts/migrations/0002_remove_user_username.py
@@ -0,0 +1,10 @@
+# Generated by Django 2.2 on 2019-07-14 10:37
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("accounts", "0001_initial")]
+
+    operations = [migrations.RemoveField(model_name="user", name="username")]
diff --git a/src/newsreader/accounts/migrations/0003_auto_20190714_1417.py b/src/newsreader/accounts/migrations/0003_auto_20190714_1417.py
new file mode 100644
index 0000000..2cbbb0d
--- /dev/null
+++ b/src/newsreader/accounts/migrations/0003_auto_20190714_1417.py
@@ -0,0 +1,16 @@
+# Generated by Django 2.2 on 2019-07-14 14:17
+
+from django.db import migrations
+
+import newsreader.accounts.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("accounts", "0002_remove_user_username")]
+
+    operations = [
+        migrations.AlterModelManagers(
+            name="user", managers=[("objects", newsreader.accounts.models.UserManager())]
+        )
+    ]
diff --git a/src/newsreader/accounts/migrations/0004_auto_20190714_1501.py b/src/newsreader/accounts/migrations/0004_auto_20190714_1501.py
new file mode 100644
index 0000000..ba2fc84
--- /dev/null
+++ b/src/newsreader/accounts/migrations/0004_auto_20190714_1501.py
@@ -0,0 +1,22 @@
+# Generated by Django 2.2 on 2019-07-14 15:01
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("accounts", "0003_auto_20190714_1417")]
+
+    operations = [
+        migrations.AlterField(
+            model_name="user",
+            name="task",
+            field=models.OneToOneField(
+                blank=True,
+                editable=False,
+                null=True,
+                on_delete="collection task",
+                to="django_celery_beat.PeriodicTask",
+            ),
+        )
+    ]
diff --git a/src/newsreader/auth/migrations/__init__.py b/src/newsreader/accounts/migrations/__init__.py
similarity index 100%
rename from src/newsreader/auth/migrations/__init__.py
rename to src/newsreader/accounts/migrations/__init__.py
diff --git a/src/newsreader/accounts/models.py b/src/newsreader/accounts/models.py
new file mode 100644
index 0000000..0c29801
--- /dev/null
+++ b/src/newsreader/accounts/models.py
@@ -0,0 +1,84 @@
+import json
+
+from django.contrib.auth.models import AbstractUser
+from django.contrib.auth.models import UserManager as DjangoUserManager
+from django.db import models
+from django.utils.translation import gettext as _
+
+from django_celery_beat.models import IntervalSchedule, PeriodicTask
+
+
+class UserManager(DjangoUserManager):
+    def _create_user(self, email, password, **extra_fields):
+        """
+        Create and save a user with the given username, email, and password.
+        """
+        if not email:
+            raise ValueError("The given email must be set")
+        email = self.normalize_email(email)
+        user = self.model(email=email, **extra_fields)
+        user.set_password(password)
+        user.save(using=self._db)
+        return user
+
+    def create_user(self, email, password=None, **extra_fields):
+        extra_fields.setdefault("is_staff", False)
+        extra_fields.setdefault("is_superuser", False)
+        return self._create_user(email, password, **extra_fields)
+
+    def create_superuser(self, email, password, **extra_fields):
+        extra_fields.setdefault("is_staff", True)
+        extra_fields.setdefault("is_superuser", True)
+
+        if extra_fields.get("is_staff") is not True:
+            raise ValueError("Superuser must have is_staff=True.")
+        if extra_fields.get("is_superuser") is not True:
+            raise ValueError("Superuser must have is_superuser=True.")
+
+        return self._create_user(email, password, **extra_fields)
+
+
+class User(AbstractUser):
+    email = models.EmailField(_("email address"), unique=True)
+
+    task = models.OneToOneField(
+        PeriodicTask, _("collection task"), null=True, blank=True, editable=False
+    )
+    task_interval = models.ForeignKey(
+        IntervalSchedule, _("collection schedule"), null=True, blank=True
+    )
+
+    username = None
+
+    objects = UserManager()
+
+    USERNAME_FIELD = "email"
+    REQUIRED_FIELDS = []
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self._original_interval = self.task_interval
+
+    def save(self, *args, **kwargs):
+        if self._original_interval != self.task_interval:
+
+            if self.task_interval and self.task:
+                self.task.interval = self.task_interval
+                self.task.enabled = True
+                self.task.save()
+
+            elif self.task_interval and not self.task:
+                self.task = PeriodicTask.objects.create(
+                    enabled=True,
+                    interval=self.task_interval,
+                    name=f"{self.email}-collection-task",
+                    task="newsreader.news.collection.tasks",
+                    args=json.dumps([self.pk]),
+                    kwargs=None,
+                )
+
+            elif not self.task_interval and self.task:
+                self.task.enabled = False
+                self.task.save()
+
+        super().save(*args, **kwargs)
diff --git a/src/newsreader/auth/permissions.py b/src/newsreader/accounts/permissions.py
similarity index 100%
rename from src/newsreader/auth/permissions.py
rename to src/newsreader/accounts/permissions.py
diff --git a/src/newsreader/auth/tests/__init__.py b/src/newsreader/accounts/tests/__init__.py
similarity index 100%
rename from src/newsreader/auth/tests/__init__.py
rename to src/newsreader/accounts/tests/__init__.py
diff --git a/src/newsreader/auth/tests/factories.py b/src/newsreader/accounts/tests/factories.py
similarity index 67%
rename from src/newsreader/auth/tests/factories.py
rename to src/newsreader/accounts/tests/factories.py
index 3975f62..d073c1c 100644
--- a/src/newsreader/auth/tests/factories.py
+++ b/src/newsreader/accounts/tests/factories.py
@@ -1,11 +1,10 @@
-from django.contrib.auth.models import User
-
 import factory
 
+from newsreader.accounts.models import User
+
 
 class UserFactory(factory.django.DjangoModelFactory):
-    username = factory.Sequence(lambda n: f"user-{n}")
-    email = factory.LazyAttribute(lambda o: f"{o.username}@example.org")
+    email = factory.Faker("email")
     password = factory.Faker("password")
 
     is_staff = False
diff --git a/src/newsreader/auth/views.py b/src/newsreader/accounts/views.py
similarity index 100%
rename from src/newsreader/auth/views.py
rename to src/newsreader/accounts/views.py
diff --git a/src/newsreader/auth/apps.py b/src/newsreader/auth/apps.py
deleted file mode 100644
index c467d4e..0000000
--- a/src/newsreader/auth/apps.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from django.apps import AppConfig
-
-
-class AuthConfig(AppConfig):
-    name = "auth"
diff --git a/src/newsreader/auth/backends.py b/src/newsreader/auth/backends.py
deleted file mode 100644
index 30a78b9..0000000
--- a/src/newsreader/auth/backends.py
+++ /dev/null
@@ -1,15 +0,0 @@
-from django.contrib.auth import get_user_model
-from django.contrib.auth.backends import ModelBackend
-
-
-class EmailBackend(ModelBackend):
-    def authenticate(self, request, username=None, password=None, **kwargs):
-        user_model_class = get_user_model()
-
-        try:
-            user = user_model_class.objects.get(email=username)
-        except user_model_class.DoesNotExist:
-            return
-
-        if user.check_password(password) and self.user_can_authenticate(user):
-            return user
diff --git a/src/newsreader/auth/models.py b/src/newsreader/auth/models.py
deleted file mode 100644
index e69de29..0000000
diff --git a/src/newsreader/celery.py b/src/newsreader/celery.py
new file mode 100644
index 0000000..4aeb7a1
--- /dev/null
+++ b/src/newsreader/celery.py
@@ -0,0 +1,12 @@
+import os
+
+from celery import Celery
+
+
+# note: this should be consistent with the setting from manage.py
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "newsreader.conf.dev")
+
+# note: use the --workdir flag when running from different directories
+app = Celery("newsreader", broker="amqp://")
+
+app.autodiscover_tasks()
diff --git a/src/newsreader/conf/base.py b/src/newsreader/conf/base.py
index bba7a37..812707b 100644
--- a/src/newsreader/conf/base.py
+++ b/src/newsreader/conf/base.py
@@ -38,7 +38,10 @@ INSTALLED_APPS = [
     "django.contrib.staticfiles",
     # third party apps
     "rest_framework",
+    "celery",
+    "django_celery_beat",
     # app modules
+    "newsreader.accounts",
     "newsreader.news.core",
     "newsreader.news.collection",
 ]
@@ -92,8 +95,8 @@ AUTH_PASSWORD_VALIDATORS = [
     {"NAME": "django.contrib.auth.password_validation.NumericPasswordValidator"},
 ]
 
-# Authentication
-AUTHENTICATION_BACKENDS = ["newsreader.auth.backends.EmailBackend"]
+# Authentication user model
+AUTH_USER_MODEL = "accounts.User"
 
 # Internationalization
 # https://docs.djangoproject.com/en/2.2/topics/i18n/
@@ -110,10 +113,12 @@ STATIC_URL = "/static/"
 
 # Third party settings
 REST_FRAMEWORK = {
-    "DEFAULT_AUTHENTICATION_CLASSES": ("rest_framework.authentication.SessionAuthentication",),
+    "DEFAULT_AUTHENTICATION_CLASSES": (
+        "rest_framework.authentication.SessionAuthentication",
+    ),
     "DEFAULT_PERMISSION_CLASSES": (
         "rest_framework.permissions.IsAuthenticated",
-        "newsreader.auth.permissions.IsOwner",
+        "newsreader.accounts.permissions.IsOwner",
     ),
     "DEFAULT_RENDERER_CLASSES": ("rest_framework.renderers.JSONRenderer",),
 }
diff --git a/src/newsreader/news/collection/admin.py b/src/newsreader/news/collection/admin.py
index 77ae900..9727b69 100644
--- a/src/newsreader/news/collection/admin.py
+++ b/src/newsreader/news/collection/admin.py
@@ -8,5 +8,10 @@ class CollectionRuleAdmin(admin.ModelAdmin):
 
     list_display = ("name", "category", "url", "last_suceeded", "succeeded")
 
+    def save_model(self, request, obj, form, change):
+        if not change:
+            obj.user = request.user
+        obj.save()
+
 
 admin.site.register(CollectionRule, CollectionRuleAdmin)
diff --git a/src/newsreader/news/collection/base.py b/src/newsreader/news/collection/base.py
index 1b80256..0524585 100644
--- a/src/newsreader/news/collection/base.py
+++ b/src/newsreader/news/collection/base.py
@@ -1,4 +1,6 @@
-from typing import ContextManager, Dict, List, Optional, Tuple
+from typing import ContextManager, Dict, Optional, Tuple
+
+from django.db.models.query import QuerySet
 
 from bs4 import BeautifulSoup
 
@@ -67,11 +69,13 @@ class Collector:
     client = None
     builder = None
 
-    def __init__(self, client: Optional[Client] = None, builder: Optional[Builder] = None) -> None:
+    def __init__(
+        self, client: Optional[Client] = None, builder: Optional[Builder] = None
+    ) -> None:
         self.client = client if client else self.client
         self.builder = builder if builder else self.builder
 
-    def collect(self, rules: Optional[List] = None) -> None:
+    def collect(self, rules: Optional[QuerySet] = None) -> None:
         with self.client(rules=rules) as client:
             for data, stream in client:
                 with self.builder((data, stream)) as builder:
diff --git a/src/newsreader/news/collection/favicon.py b/src/newsreader/news/collection/favicon.py
index 05bd6c9..f0a5a6b 100644
--- a/src/newsreader/news/collection/favicon.py
+++ b/src/newsreader/news/collection/favicon.py
@@ -78,7 +78,9 @@ class FaviconClient(Client):
 
     def __enter__(self) -> ContextManager:
         with ThreadPoolExecutor(max_workers=10) as executor:
-            futures = {executor.submit(stream.read): rule for rule, stream in self.streams}
+            futures = {
+                executor.submit(stream.read): rule for rule, stream in self.streams
+            }
 
             for future in as_completed(futures):
                 rule = futures[future]
diff --git a/src/newsreader/news/collection/feed.py b/src/newsreader/news/collection/feed.py
index 7237073..2ac4854 100644
--- a/src/newsreader/news/collection/feed.py
+++ b/src/newsreader/news/collection/feed.py
@@ -156,7 +156,7 @@ class FeedCollector(Collector):
 
 class FeedDuplicateHandler:
     def __init__(self, rule: CollectionRule) -> None:
-        self.queryset = rule.post_set.all()
+        self.queryset = rule.posts.all()
 
     def __enter__(self) -> ContextManager:
         self.existing_identifiers = self.queryset.filter(
@@ -202,7 +202,9 @@ class FeedDuplicateHandler:
 
     def handle_duplicate(self, instance: Post) -> Optional[Post]:
         try:
-            existing_instance = self.queryset.get(remote_identifier=instance.remote_identifier)
+            existing_instance = self.queryset.get(
+                remote_identifier=instance.remote_identifier
+            )
         except ObjectDoesNotExist:
             return
 
diff --git a/src/newsreader/news/collection/management/commands/collect.py b/src/newsreader/news/collection/management/commands/collect.py
index 3da9905..7d928f0 100644
--- a/src/newsreader/news/collection/management/commands/collect.py
+++ b/src/newsreader/news/collection/management/commands/collect.py
@@ -1,14 +1,11 @@
 from django.core.management.base import BaseCommand
 
 from newsreader.news.collection.feed import FeedCollector
-from newsreader.news.collection.models import CollectionRule
 
 
 class Command(BaseCommand):
     help = "Collects Atom/RSS feeds"
 
     def handle(self, *args, **options):
-        CollectionRule.objects.all()
-
         collector = FeedCollector()
         collector.collect()
diff --git a/src/newsreader/news/collection/migrations/0001_initial.py b/src/newsreader/news/collection/migrations/0001_initial.py
index 00d3d31..51b9396 100644
--- a/src/newsreader/news/collection/migrations/0001_initial.py
+++ b/src/newsreader/news/collection/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 2.2 on 2019-07-05 20:59
+# Generated by Django 2.2 on 2019-07-14 10:36
 
 import django.utils.timezone
 
@@ -18,7 +18,10 @@ class Migration(migrations.Migration):
                 (
                     "id",
                     models.AutoField(
-                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
                     ),
                 ),
                 ("created", models.DateTimeField(default=django.utils.timezone.now)),
@@ -27,7 +30,9 @@ class Migration(migrations.Migration):
                 ("url", models.URLField(max_length=1024)),
                 (
                     "website_url",
-                    models.URLField(blank=True, editable=False, max_length=1024, null=True),
+                    models.URLField(
+                        blank=True, editable=False, max_length=1024, null=True
+                    ),
                 ),
                 ("favicon", models.URLField(blank=True, null=True)),
                 (
@@ -93,8 +98,14 @@ class Migration(migrations.Migration):
                             ("America/Anguilla", "America/Anguilla"),
                             ("America/Antigua", "America/Antigua"),
                             ("America/Araguaina", "America/Araguaina"),
-                            ("America/Argentina/Buenos_Aires", "America/Argentina/Buenos_Aires"),
-                            ("America/Argentina/Catamarca", "America/Argentina/Catamarca"),
+                            (
+                                "America/Argentina/Buenos_Aires",
+                                "America/Argentina/Buenos_Aires",
+                            ),
+                            (
+                                "America/Argentina/Catamarca",
+                                "America/Argentina/Catamarca",
+                            ),
                             (
                                 "America/Argentina/ComodRivadavia",
                                 "America/Argentina/ComodRivadavia",
@@ -103,7 +114,10 @@ class Migration(migrations.Migration):
                             ("America/Argentina/Jujuy", "America/Argentina/Jujuy"),
                             ("America/Argentina/La_Rioja", "America/Argentina/La_Rioja"),
                             ("America/Argentina/Mendoza", "America/Argentina/Mendoza"),
-                            ("America/Argentina/Rio_Gallegos", "America/Argentina/Rio_Gallegos"),
+                            (
+                                "America/Argentina/Rio_Gallegos",
+                                "America/Argentina/Rio_Gallegos",
+                            ),
                             ("America/Argentina/Salta", "America/Argentina/Salta"),
                             ("America/Argentina/San_Juan", "America/Argentina/San_Juan"),
                             ("America/Argentina/San_Luis", "America/Argentina/San_Luis"),
@@ -163,7 +177,10 @@ class Migration(migrations.Migration):
                             ("America/Halifax", "America/Halifax"),
                             ("America/Havana", "America/Havana"),
                             ("America/Hermosillo", "America/Hermosillo"),
-                            ("America/Indiana/Indianapolis", "America/Indiana/Indianapolis"),
+                            (
+                                "America/Indiana/Indianapolis",
+                                "America/Indiana/Indianapolis",
+                            ),
                             ("America/Indiana/Knox", "America/Indiana/Knox"),
                             ("America/Indiana/Marengo", "America/Indiana/Marengo"),
                             ("America/Indiana/Petersburg", "America/Indiana/Petersburg"),
@@ -177,8 +194,14 @@ class Migration(migrations.Migration):
                             ("America/Jamaica", "America/Jamaica"),
                             ("America/Jujuy", "America/Jujuy"),
                             ("America/Juneau", "America/Juneau"),
-                            ("America/Kentucky/Louisville", "America/Kentucky/Louisville"),
-                            ("America/Kentucky/Monticello", "America/Kentucky/Monticello"),
+                            (
+                                "America/Kentucky/Louisville",
+                                "America/Kentucky/Louisville",
+                            ),
+                            (
+                                "America/Kentucky/Monticello",
+                                "America/Kentucky/Monticello",
+                            ),
                             ("America/Knox_IN", "America/Knox_IN"),
                             ("America/Kralendijk", "America/Kralendijk"),
                             ("America/La_Paz", "America/La_Paz"),
@@ -209,9 +232,18 @@ class Migration(migrations.Migration):
                             ("America/Nipigon", "America/Nipigon"),
                             ("America/Nome", "America/Nome"),
                             ("America/Noronha", "America/Noronha"),
-                            ("America/North_Dakota/Beulah", "America/North_Dakota/Beulah"),
-                            ("America/North_Dakota/Center", "America/North_Dakota/Center"),
-                            ("America/North_Dakota/New_Salem", "America/North_Dakota/New_Salem"),
+                            (
+                                "America/North_Dakota/Beulah",
+                                "America/North_Dakota/Beulah",
+                            ),
+                            (
+                                "America/North_Dakota/Center",
+                                "America/North_Dakota/Center",
+                            ),
+                            (
+                                "America/North_Dakota/New_Salem",
+                                "America/North_Dakota/New_Salem",
+                            ),
                             ("America/Ojinaga", "America/Ojinaga"),
                             ("America/Panama", "America/Panama"),
                             ("America/Pangnirtung", "America/Pangnirtung"),
diff --git a/src/newsreader/news/collection/migrations/0002_auto_20190714_1036.py b/src/newsreader/news/collection/migrations/0002_auto_20190714_1036.py
new file mode 100644
index 0000000..09c01cf
--- /dev/null
+++ b/src/newsreader/news/collection/migrations/0002_auto_20190714_1036.py
@@ -0,0 +1,37 @@
+# Generated by Django 2.2 on 2019-07-14 10:36
+
+import django.db.models.deletion
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ("collection", "0001_initial"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("core", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="collectionrule",
+            name="category",
+            field=models.ForeignKey(
+                blank=True,
+                help_text="Posts from this rule will be tagged with this category",
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                to="core.Category",
+                verbose_name="Category",
+            ),
+        ),
+        migrations.AddField(
+            model_name="collectionrule",
+            name="user",
+            field=models.ForeignKey(on_delete="Owner", to=settings.AUTH_USER_MODEL),
+        ),
+    ]
diff --git a/src/newsreader/news/collection/migrations/0003_auto_20190714_1417.py b/src/newsreader/news/collection/migrations/0003_auto_20190714_1417.py
new file mode 100644
index 0000000..9f86c32
--- /dev/null
+++ b/src/newsreader/news/collection/migrations/0003_auto_20190714_1417.py
@@ -0,0 +1,19 @@
+# Generated by Django 2.2 on 2019-07-14 14:17
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("collection", "0002_auto_20190714_1036")]
+
+    operations = [
+        migrations.AlterField(
+            model_name="collectionrule",
+            name="user",
+            field=models.ForeignKey(
+                on_delete="Owner", related_name="rules", to=settings.AUTH_USER_MODEL
+            ),
+        )
+    ]
diff --git a/src/newsreader/news/collection/migrations/0003_collectionrule_user.py b/src/newsreader/news/collection/migrations/0003_collectionrule_user.py
deleted file mode 100644
index a735ea3..0000000
--- a/src/newsreader/news/collection/migrations/0003_collectionrule_user.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# Generated by Django 2.2 on 2019-07-07 17:08
-
-from django.conf import settings
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ("collection", "0002_collectionrule_category"),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name="collectionrule",
-            name="user",
-            field=models.ForeignKey(default=None, on_delete="Owner", to=settings.AUTH_USER_MODEL),
-            preserve_default=False,
-        )
-    ]
diff --git a/src/newsreader/news/collection/migrations/0002_collectionrule_category.py b/src/newsreader/news/collection/migrations/0004_auto_20190714_1422.py
similarity index 75%
rename from src/newsreader/news/collection/migrations/0002_collectionrule_category.py
rename to src/newsreader/news/collection/migrations/0004_auto_20190714_1422.py
index b9449a7..4e9efb2 100644
--- a/src/newsreader/news/collection/migrations/0002_collectionrule_category.py
+++ b/src/newsreader/news/collection/migrations/0004_auto_20190714_1422.py
@@ -1,4 +1,4 @@
-# Generated by Django 2.2 on 2019-07-05 20:59
+# Generated by Django 2.2 on 2019-07-14 14:22
 
 import django.db.models.deletion
 
@@ -7,12 +7,10 @@ from django.db import migrations, models
 
 class Migration(migrations.Migration):
 
-    initial = True
-
-    dependencies = [("collection", "0001_initial"), ("core", "0001_initial")]
+    dependencies = [("collection", "0003_auto_20190714_1417")]
 
     operations = [
-        migrations.AddField(
+        migrations.AlterField(
             model_name="collectionrule",
             name="category",
             field=models.ForeignKey(
@@ -20,6 +18,7 @@ class Migration(migrations.Migration):
                 help_text="Posts from this rule will be tagged with this category",
                 null=True,
                 on_delete=django.db.models.deletion.SET_NULL,
+                related_name="rules",
                 to="core.Category",
                 verbose_name="Category",
             ),
diff --git a/src/newsreader/news/collection/models.py b/src/newsreader/news/collection/models.py
index d65176a..4432f77 100644
--- a/src/newsreader/news/collection/models.py
+++ b/src/newsreader/news/collection/models.py
@@ -24,6 +24,7 @@ class CollectionRule(TimeStampedModel):
         blank=True,
         null=True,
         verbose_name=_("Category"),
+        related_name="rules",
         help_text=_("Posts from this rule will be tagged with this category"),
         on_delete=models.SET_NULL,
     )
@@ -32,7 +33,7 @@ class CollectionRule(TimeStampedModel):
     succeeded = models.BooleanField(default=False)
     error = models.CharField(max_length=255, blank=True, null=True)
 
-    user = models.ForeignKey("auth.User", _("Owner"))
+    user = models.ForeignKey("accounts.User", _("Owner"), related_name="rules")
 
     def __str__(self):
         return self.name
diff --git a/src/newsreader/news/collection/serializers.py b/src/newsreader/news/collection/serializers.py
index cf6f9ea..4f7f3a5 100644
--- a/src/newsreader/news/collection/serializers.py
+++ b/src/newsreader/news/collection/serializers.py
@@ -10,9 +10,11 @@ class CollectionRuleSerializer(serializers.HyperlinkedModelSerializer):
 
     def get_posts(self, instance):
         request = self.context.get("request")
-        posts = instance.post_set.order_by("-publication_date")
+        posts = instance.posts.order_by("-publication_date")
 
-        serializer = core.serializers.PostSerializer(posts, context={"request": request}, many=True)
+        serializer = core.serializers.PostSerializer(
+            posts, context={"request": request}, many=True
+        )
         return serializer.data
 
     class Meta:
diff --git a/src/newsreader/news/collection/tasks.py b/src/newsreader/news/collection/tasks.py
new file mode 100644
index 0000000..bdf8ffc
--- /dev/null
+++ b/src/newsreader/news/collection/tasks.py
@@ -0,0 +1,19 @@
+from django.core.exceptions import ObjectDoesNotExist
+
+from newsreader.accounts.models import User
+from newsreader.celery import app
+from newsreader.news.collection.feed import FeedCollector
+
+
+@app.task
+def collect(user_pk):
+    try:
+        user = User.objects.get(pk=user_pk)
+    except ObjectDoesNotExist:
+        # TODO remove this task
+        return
+
+    rules = user.rules.all()
+
+    collector = FeedCollector()
+    collector.collect(rules=rules)
diff --git a/src/newsreader/news/collection/tests/endpoints/rules/detail/tests.py b/src/newsreader/news/collection/tests/endpoints/rules/detail/tests.py
index 8782533..6a85345 100644
--- a/src/newsreader/news/collection/tests/endpoints/rules/detail/tests.py
+++ b/src/newsreader/news/collection/tests/endpoints/rules/detail/tests.py
@@ -5,7 +5,7 @@ from urllib.parse import urljoin
 from django.test import Client, TestCase
 from django.urls import reverse
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.tests.factories import CollectionRuleFactory
 from newsreader.news.core.tests.factories import CategoryFactory
 
@@ -130,14 +130,18 @@ class CollectionRuleDetailViewTestCase(TestCase):
         self.client.force_login(self.user)
         response = self.client.patch(
             reverse("api:rules-detail", args=[rule.pk]),
-            data=json.dumps({"category": reverse("api:categories-detail", args=[category.pk])}),
+            data=json.dumps(
+                {"category": reverse("api:categories-detail", args=[category.pk])}
+            ),
             content_type="application/json",
         )
         data = response.json()
         url = data["category"]
 
         self.assertEquals(response.status_code, 200)
-        self.assertTrue(url.endswith(reverse("api:categories-detail", args=[category.pk])))
+        self.assertTrue(
+            url.endswith(reverse("api:categories-detail", args=[category.pk]))
+        )
 
     def test_put(self):
         rule = CollectionRuleFactory(name="BBC", user=self.user)
diff --git a/src/newsreader/news/collection/tests/endpoints/rules/list/tests.py b/src/newsreader/news/collection/tests/endpoints/rules/list/tests.py
index f5a0cea..04c7b73 100644
--- a/src/newsreader/news/collection/tests/endpoints/rules/list/tests.py
+++ b/src/newsreader/news/collection/tests/endpoints/rules/list/tests.py
@@ -7,7 +7,7 @@ from django.urls import reverse
 
 import pytz
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.tests.factories import CollectionRuleFactory
 from newsreader.news.core.tests.factories import CategoryFactory, PostFactory
 
@@ -100,7 +100,9 @@ class CollectionRuleListViewTestCase(TestCase):
 
         self.client.force_login(self.user)
         response = self.client.post(
-            reverse("api:rules-list"), data=json.dumps(data), content_type="application/json"
+            reverse("api:rules-list"),
+            data=json.dumps(data),
+            content_type="application/json",
         )
         data = response.json()
         category_url = data["category"]
@@ -110,7 +112,9 @@ class CollectionRuleListViewTestCase(TestCase):
         self.assertEquals(data["name"], "BBC")
         self.assertEquals(data["url"], "https://www.bbc.co.uk")
 
-        self.assertTrue(category_url.endswith(reverse("api:categories-detail", args=[category.pk])))
+        self.assertTrue(
+            category_url.endswith(reverse("api:categories-detail", args=[category.pk]))
+        )
 
     def test_patch(self):
         self.client.force_login(self.user)
diff --git a/src/newsreader/news/collection/tests/factories.py b/src/newsreader/news/collection/tests/factories.py
index 9d0803f..bddcf1b 100644
--- a/src/newsreader/news/collection/tests/factories.py
+++ b/src/newsreader/news/collection/tests/factories.py
@@ -1,6 +1,6 @@
 import factory
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.models import CollectionRule
 
 
diff --git a/src/newsreader/news/collection/tests/favicon/builder/tests.py b/src/newsreader/news/collection/tests/favicon/builder/tests.py
index 2e7b57a..e8a1a34 100644
--- a/src/newsreader/news/collection/tests/favicon/builder/tests.py
+++ b/src/newsreader/news/collection/tests/favicon/builder/tests.py
@@ -18,7 +18,9 @@ class FaviconBuilderTestCase(TestCase):
         self.assertEquals(rule.favicon, "https://www.bbc.com/favicon.ico")
 
     def test_without_url(self):
-        rule = CollectionRuleFactory(website_url="https://www.theguardian.com/", favicon=None)
+        rule = CollectionRuleFactory(
+            website_url="https://www.theguardian.com/", favicon=None
+        )
 
         with FaviconBuilder((rule, mock_without_url)) as builder:
             builder.build()
@@ -39,7 +41,9 @@ class FaviconBuilderTestCase(TestCase):
         with FaviconBuilder((rule, mock_with_weird_path)) as builder:
             builder.build()
 
-        self.assertEquals(rule.favicon, "https://www.theguardian.com/jabadaba/doe/favicon.ico")
+        self.assertEquals(
+            rule.favicon, "https://www.theguardian.com/jabadaba/doe/favicon.ico"
+        )
 
     def test_other_url(self):
         rule = CollectionRuleFactory(favicon=None)
diff --git a/src/newsreader/news/collection/tests/favicon/collector/mocks.py b/src/newsreader/news/collection/tests/favicon/collector/mocks.py
index 097b1dd..3318ffd 100644
--- a/src/newsreader/news/collection/tests/favicon/collector/mocks.py
+++ b/src/newsreader/news/collection/tests/favicon/collector/mocks.py
@@ -137,7 +137,13 @@ feed_mock = {
             "link": "https://www.bbc.co.uk/news/",
         },
         "link": "https://www.bbc.co.uk/news/",
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
diff --git a/src/newsreader/news/collection/tests/favicon/collector/tests.py b/src/newsreader/news/collection/tests/favicon/collector/tests.py
index 48c16e7..44254a5 100644
--- a/src/newsreader/news/collection/tests/favicon/collector/tests.py
+++ b/src/newsreader/news/collection/tests/favicon/collector/tests.py
@@ -22,10 +22,14 @@ class FaviconCollectorTestCase(TestCase):
     def setUp(self):
         self.maxDiff = None
 
-        self.patched_feed_client = patch("newsreader.news.collection.favicon.FeedClient.__enter__")
+        self.patched_feed_client = patch(
+            "newsreader.news.collection.favicon.FeedClient.__enter__"
+        )
         self.mocked_feed_client = self.patched_feed_client.start()
 
-        self.patched_website_read = patch("newsreader.news.collection.favicon.WebsiteStream.read")
+        self.patched_website_read = patch(
+            "newsreader.news.collection.favicon.WebsiteStream.read"
+        )
         self.mocked_website_read = self.patched_website_read.start()
 
     def tearDown(self):
diff --git a/src/newsreader/news/collection/tests/feed/builder/mocks.py b/src/newsreader/news/collection/tests/feed/builder/mocks.py
index 9003f86..945347b 100644
--- a/src/newsreader/news/collection/tests/feed/builder/mocks.py
+++ b/src/newsreader/news/collection/tests/feed/builder/mocks.py
@@ -57,7 +57,13 @@ simple_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -201,7 +207,13 @@ multiple_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -302,7 +314,13 @@ mock_without_identifier = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -402,7 +420,13 @@ mock_without_publish_date = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -492,7 +516,13 @@ mock_without_url = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -575,7 +605,13 @@ mock_without_body = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -676,7 +712,13 @@ mock_without_author = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -822,7 +864,13 @@ mock_with_update_entries = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -883,7 +931,13 @@ mock_with_html = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -945,7 +999,13 @@ mock_with_long_author = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -1012,7 +1072,13 @@ mock_with_long_title = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
diff --git a/src/newsreader/news/collection/tests/feed/builder/tests.py b/src/newsreader/news/collection/tests/feed/builder/tests.py
index 33aae7f..2f09591 100644
--- a/src/newsreader/news/collection/tests/feed/builder/tests.py
+++ b/src/newsreader/news/collection/tests/feed/builder/tests.py
@@ -42,7 +42,9 @@ class FeedBuilderTestCase(TestCase):
 
         self.assertEquals(post.url, "https://www.bbc.co.uk/news/world-us-canada-48338168")
 
-        self.assertEquals(post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif")
+        self.assertEquals(
+            post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif"
+        )
 
     def test_multiple_entries(self):
         builder = FeedBuilder
@@ -64,12 +66,17 @@ class FeedBuilderTestCase(TestCase):
         self.assertEquals(first_post.publication_date, aware_date)
 
         self.assertEquals(
-            first_post.remote_identifier, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+            first_post.remote_identifier,
+            "https://www.bbc.co.uk/news/world-us-canada-48338168",
         )
 
-        self.assertEquals(first_post.url, "https://www.bbc.co.uk/news/world-us-canada-48338168")
+        self.assertEquals(
+            first_post.url, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+        )
 
-        self.assertEquals(first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif")
+        self.assertEquals(
+            first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif"
+        )
 
         d = datetime.combine(date(2019, 5, 20), time(hour=12, minute=19, second=19))
         aware_date = pytz.utc.localize(d)
@@ -77,10 +84,13 @@ class FeedBuilderTestCase(TestCase):
         self.assertEquals(second_post.publication_date, aware_date)
 
         self.assertEquals(
-            second_post.remote_identifier, "https://www.bbc.co.uk/news/technology-48334739"
+            second_post.remote_identifier,
+            "https://www.bbc.co.uk/news/technology-48334739",
         )
 
-        self.assertEquals(second_post.url, "https://www.bbc.co.uk/news/technology-48334739")
+        self.assertEquals(
+            second_post.url, "https://www.bbc.co.uk/news/technology-48334739"
+        )
 
         self.assertEquals(second_post.title, "Huawei's Android loss: How it affects you")
 
@@ -104,9 +114,13 @@ class FeedBuilderTestCase(TestCase):
 
         self.assertEquals(first_post.remote_identifier, None)
 
-        self.assertEquals(first_post.url, "https://www.bbc.co.uk/news/world-us-canada-48338168")
+        self.assertEquals(
+            first_post.url, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+        )
 
-        self.assertEquals(first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif")
+        self.assertEquals(
+            first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif"
+        )
 
     @freeze_time("2019-10-30 12:30:00")
     def test_entry_without_publication_date(self):
@@ -125,12 +139,14 @@ class FeedBuilderTestCase(TestCase):
 
         self.assertEquals(first_post.created, timezone.now())
         self.assertEquals(
-            first_post.remote_identifier, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+            first_post.remote_identifier,
+            "https://www.bbc.co.uk/news/world-us-canada-48338168",
         )
 
         self.assertEquals(second_post.created, timezone.now())
         self.assertEquals(
-            second_post.remote_identifier, "https://www.bbc.co.uk/news/technology-48334739"
+            second_post.remote_identifier,
+            "https://www.bbc.co.uk/news/technology-48334739",
         )
 
     @freeze_time("2019-10-30 12:30:00")
@@ -150,12 +166,14 @@ class FeedBuilderTestCase(TestCase):
 
         self.assertEquals(first_post.created, timezone.now())
         self.assertEquals(
-            first_post.remote_identifier, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+            first_post.remote_identifier,
+            "https://www.bbc.co.uk/news/world-us-canada-48338168",
         )
 
         self.assertEquals(second_post.created, timezone.now())
         self.assertEquals(
-            second_post.remote_identifier, "https://www.bbc.co.uk/news/technology-48334739"
+            second_post.remote_identifier,
+            "https://www.bbc.co.uk/news/technology-48334739",
         )
 
     @freeze_time("2019-10-30 12:30:00")
@@ -175,7 +193,8 @@ class FeedBuilderTestCase(TestCase):
 
         self.assertEquals(first_post.created, timezone.now())
         self.assertEquals(
-            first_post.remote_identifier, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+            first_post.remote_identifier,
+            "https://www.bbc.co.uk/news/world-us-canada-48338168",
         )
 
         self.assertEquals(second_post.created, timezone.now())
@@ -201,12 +220,14 @@ class FeedBuilderTestCase(TestCase):
 
         self.assertEquals(first_post.created, timezone.now())
         self.assertEquals(
-            first_post.remote_identifier, "https://www.bbc.co.uk/news/world-us-canada-48338168"
+            first_post.remote_identifier,
+            "https://www.bbc.co.uk/news/world-us-canada-48338168",
         )
 
         self.assertEquals(second_post.created, timezone.now())
         self.assertEquals(
-            second_post.remote_identifier, "https://www.bbc.co.uk/news/technology-48334739"
+            second_post.remote_identifier,
+            "https://www.bbc.co.uk/news/technology-48334739",
         )
 
     def test_empty_entries(self):
@@ -241,10 +262,13 @@ class FeedBuilderTestCase(TestCase):
         existing_second_post.refresh_from_db()
 
         self.assertEquals(
-            existing_first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif"
+            existing_first_post.title,
+            "Trump's 'genocidal taunts' will not end Iran - Zarif",
         )
 
-        self.assertEquals(existing_second_post.title, "Huawei's Android loss: How it affects you")
+        self.assertEquals(
+            existing_second_post.title, "Huawei's Android loss: How it affects you"
+        )
 
     def test_html_sanitizing(self):
         builder = FeedBuilder
diff --git a/src/newsreader/news/collection/tests/feed/client/mocks.py b/src/newsreader/news/collection/tests/feed/client/mocks.py
index e055e7b..05283a4 100644
--- a/src/newsreader/news/collection/tests/feed/client/mocks.py
+++ b/src/newsreader/news/collection/tests/feed/client/mocks.py
@@ -54,7 +54,13 @@ simple_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
diff --git a/src/newsreader/news/collection/tests/feed/collector/mocks.py b/src/newsreader/news/collection/tests/feed/collector/mocks.py
index 211f4ef..8ff19b9 100644
--- a/src/newsreader/news/collection/tests/feed/collector/mocks.py
+++ b/src/newsreader/news/collection/tests/feed/collector/mocks.py
@@ -134,7 +134,13 @@ multiple_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -154,7 +160,13 @@ empty_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -292,7 +304,13 @@ duplicate_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
@@ -433,7 +451,13 @@ multiple_update_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
diff --git a/src/newsreader/news/collection/tests/feed/collector/tests.py b/src/newsreader/news/collection/tests/feed/collector/tests.py
index 6834b9c..35dd8d8 100644
--- a/src/newsreader/news/collection/tests/feed/collector/tests.py
+++ b/src/newsreader/news/collection/tests/feed/collector/tests.py
@@ -234,8 +234,12 @@ class FeedCollectorTestCase(TestCase):
         self.assertEquals(rule.last_suceeded, timezone.now())
         self.assertEquals(rule.error, None)
 
-        self.assertEquals(first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif")
+        self.assertEquals(
+            first_post.title, "Trump's 'genocidal taunts' will not end Iran - Zarif"
+        )
 
         self.assertEquals(second_post.title, "Huawei's Android loss: How it affects you")
 
-        self.assertEquals(third_post.title, "Birmingham head teacher threatened over LGBT lessons")
+        self.assertEquals(
+            third_post.title, "Birmingham head teacher threatened over LGBT lessons"
+        )
diff --git a/src/newsreader/news/collection/tests/feed/stream/mocks.py b/src/newsreader/news/collection/tests/feed/stream/mocks.py
index 9e7d796..7dfeba6 100644
--- a/src/newsreader/news/collection/tests/feed/stream/mocks.py
+++ b/src/newsreader/news/collection/tests/feed/stream/mocks.py
@@ -54,7 +54,13 @@ simple_mock = {
             "language": "en-gb",
             "link": "https://www.bbc.co.uk/news/",
         },
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
diff --git a/src/newsreader/news/collection/tests/mocks.py b/src/newsreader/news/collection/tests/mocks.py
index 32ad699..574d3a5 100644
--- a/src/newsreader/news/collection/tests/mocks.py
+++ b/src/newsreader/news/collection/tests/mocks.py
@@ -20,7 +20,13 @@ simple_feed_mock = {
             "link": "https://www.bbc.co.uk/news/",
         },
         "link": "https://www.bbc.co.uk/news/",
-        "links": [{"href": "https://www.bbc.co.uk/news/", "rel": "alternate", "type": "text/html"}],
+        "links": [
+            {
+                "href": "https://www.bbc.co.uk/news/",
+                "rel": "alternate",
+                "type": "text/html",
+            }
+        ],
         "title": "BBC News - Home",
     },
     "href": "http://feeds.bbci.co.uk/news/rss.xml",
diff --git a/src/newsreader/news/collection/tests/tests.py b/src/newsreader/news/collection/tests/tests.py
index c39abea..363e0b5 100644
--- a/src/newsreader/news/collection/tests/tests.py
+++ b/src/newsreader/news/collection/tests/tests.py
@@ -118,7 +118,9 @@ class URLBuilderTestCase(TestCase):
     def test_no_link(self):
         initial_rule = CollectionRuleFactory()
 
-        with URLBuilder((feed_mock_without_link, MagicMock(rule=initial_rule))) as builder:
+        with URLBuilder(
+            (feed_mock_without_link, MagicMock(rule=initial_rule))
+        ) as builder:
             rule, url = builder.build()
 
         self.assertEquals(rule.pk, initial_rule.pk)
diff --git a/src/newsreader/news/collection/urls.py b/src/newsreader/news/collection/urls.py
index de289d1..4b59a09 100644
--- a/src/newsreader/news/collection/urls.py
+++ b/src/newsreader/news/collection/urls.py
@@ -1,6 +1,9 @@
 from django.urls import path
 
-from newsreader.news.collection.views import CollectionRuleAPIListView, CollectionRuleDetailView
+from newsreader.news.collection.views import (
+    CollectionRuleAPIListView,
+    CollectionRuleDetailView,
+)
 
 
 endpoints = [
diff --git a/src/newsreader/news/core/migrations/0001_initial.py b/src/newsreader/news/core/migrations/0001_initial.py
index 9d9ebc9..be138d9 100644
--- a/src/newsreader/news/core/migrations/0001_initial.py
+++ b/src/newsreader/news/core/migrations/0001_initial.py
@@ -1,8 +1,9 @@
-# Generated by Django 2.2 on 2019-07-05 20:59
+# Generated by Django 2.2 on 2019-07-14 10:36
 
 import django.db.models.deletion
 import django.utils.timezone
 
+from django.conf import settings
 from django.db import migrations, models
 
 
@@ -10,43 +11,36 @@ class Migration(migrations.Migration):
 
     initial = True
 
-    dependencies = [("collection", "0001_initial")]
+    dependencies = [
+        ("collection", "0001_initial"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
 
     operations = [
-        migrations.CreateModel(
-            name="Category",
-            fields=[
-                (
-                    "id",
-                    models.AutoField(
-                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
-                    ),
-                ),
-                ("created", models.DateTimeField(default=django.utils.timezone.now)),
-                ("modified", models.DateTimeField(auto_now=True)),
-                ("name", models.CharField(max_length=50, unique=True)),
-            ],
-            options={"verbose_name": "Category", "verbose_name_plural": "Categories"},
-        ),
         migrations.CreateModel(
             name="Post",
             fields=[
                 (
                     "id",
                     models.AutoField(
-                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
                     ),
                 ),
                 ("created", models.DateTimeField(default=django.utils.timezone.now)),
                 ("modified", models.DateTimeField(auto_now=True)),
                 ("title", models.CharField(blank=True, max_length=200, null=True)),
                 ("body", models.TextField(blank=True, null=True)),
-                ("author", models.CharField(blank=True, max_length=200, null=True)),
+                ("author", models.CharField(blank=True, max_length=40, null=True)),
                 ("publication_date", models.DateTimeField(blank=True, null=True)),
                 ("url", models.URLField(blank=True, max_length=1024, null=True)),
                 (
                     "remote_identifier",
-                    models.CharField(blank=True, editable=False, max_length=500, null=True),
+                    models.CharField(
+                        blank=True, editable=False, max_length=500, null=True
+                    ),
                 ),
                 (
                     "rule",
@@ -59,4 +53,26 @@ class Migration(migrations.Migration):
             ],
             options={"abstract": False},
         ),
+        migrations.CreateModel(
+            name="Category",
+            fields=[
+                (
+                    "id",
+                    models.AutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("created", models.DateTimeField(default=django.utils.timezone.now)),
+                ("modified", models.DateTimeField(auto_now=True)),
+                ("name", models.CharField(max_length=50, unique=True)),
+                (
+                    "user",
+                    models.ForeignKey(on_delete="Owner", to=settings.AUTH_USER_MODEL),
+                ),
+            ],
+            options={"verbose_name": "Category", "verbose_name_plural": "Categories"},
+        ),
     ]
diff --git a/src/newsreader/news/core/migrations/0002_auto_20190714_1425.py b/src/newsreader/news/core/migrations/0002_auto_20190714_1425.py
new file mode 100644
index 0000000..acb2d9d
--- /dev/null
+++ b/src/newsreader/news/core/migrations/0002_auto_20190714_1425.py
@@ -0,0 +1,31 @@
+# Generated by Django 2.2 on 2019-07-14 14:25
+
+import django.db.models.deletion
+
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("core", "0001_initial")]
+
+    operations = [
+        migrations.AlterField(
+            model_name="category",
+            name="user",
+            field=models.ForeignKey(
+                on_delete="Owner", related_name="categories", to=settings.AUTH_USER_MODEL
+            ),
+        ),
+        migrations.AlterField(
+            model_name="post",
+            name="rule",
+            field=models.ForeignKey(
+                editable=False,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="posts",
+                to="collection.CollectionRule",
+            ),
+        ),
+    ]
diff --git a/src/newsreader/news/core/migrations/0002_category_user.py b/src/newsreader/news/core/migrations/0002_category_user.py
deleted file mode 100644
index d2fa17f..0000000
--- a/src/newsreader/news/core/migrations/0002_category_user.py
+++ /dev/null
@@ -1,21 +0,0 @@
-# Generated by Django 2.2 on 2019-07-07 17:08
-
-from django.conf import settings
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
-        ("core", "0001_initial"),
-    ]
-
-    operations = [
-        migrations.AddField(
-            model_name="category",
-            name="user",
-            field=models.ForeignKey(default=None, on_delete="Owner", to=settings.AUTH_USER_MODEL),
-            preserve_default=False,
-        )
-    ]
diff --git a/src/newsreader/news/core/migrations/0003_auto_20190710_2022.py b/src/newsreader/news/core/migrations/0003_auto_20190710_2022.py
deleted file mode 100644
index 3c7fe84..0000000
--- a/src/newsreader/news/core/migrations/0003_auto_20190710_2022.py
+++ /dev/null
@@ -1,16 +0,0 @@
-# Generated by Django 2.2 on 2019-07-10 18:22
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [("core", "0002_category_user")]
-
-    operations = [
-        migrations.AlterField(
-            model_name="post",
-            name="author",
-            field=models.CharField(blank=True, max_length=40, null=True),
-        )
-    ]
diff --git a/src/newsreader/news/core/models.py b/src/newsreader/news/core/models.py
index c7d2638..ce5fa16 100644
--- a/src/newsreader/news/core/models.py
+++ b/src/newsreader/news/core/models.py
@@ -12,8 +12,12 @@ class Post(TimeStampedModel):
     publication_date = models.DateTimeField(blank=True, null=True)
     url = models.URLField(max_length=1024, blank=True, null=True)
 
-    rule = models.ForeignKey(CollectionRule, on_delete=models.CASCADE, editable=False)
-    remote_identifier = models.CharField(max_length=500, blank=True, null=True, editable=False)
+    rule = models.ForeignKey(
+        CollectionRule, on_delete=models.CASCADE, editable=False, related_name="posts"
+    )
+    remote_identifier = models.CharField(
+        max_length=500, blank=True, null=True, editable=False
+    )
 
     def __str__(self):
         return "Post-{}".format(self.pk)
@@ -21,7 +25,7 @@ class Post(TimeStampedModel):
 
 class Category(TimeStampedModel):
     name = models.CharField(max_length=50, unique=True)
-    user = models.ForeignKey("auth.User", _("Owner"))
+    user = models.ForeignKey("accounts.User", _("Owner"), related_name="categories")
 
     class Meta:
         verbose_name = _("Category")
diff --git a/src/newsreader/news/core/pagination.py b/src/newsreader/news/core/pagination.py
index 357ff71..8a09234 100644
--- a/src/newsreader/news/core/pagination.py
+++ b/src/newsreader/news/core/pagination.py
@@ -7,7 +7,7 @@ class CategorySerializer(serializers.ModelSerializer):
     rules = serializers.SerializerMethodField()
 
     def get_rules(self, instance):
-        rules = instance.collectionrule_set.order_by("-modified", "-created")
+        rules = instance.rules.order_by("-modified", "-created")
         serializer = CollectionRuleSerializer(rules, many=True)
         return serializer.data
 
diff --git a/src/newsreader/news/core/serializers.py b/src/newsreader/news/core/serializers.py
index ca3e93c..cb6eb12 100644
--- a/src/newsreader/news/core/serializers.py
+++ b/src/newsreader/news/core/serializers.py
@@ -26,7 +26,7 @@ class CategorySerializer(serializers.HyperlinkedModelSerializer):
 
     def get_rules(self, instance):
         request = self.context.get("request")
-        rules = instance.collectionrule_set.order_by("-modified", "-created")
+        rules = instance.rules.order_by("-modified", "-created")
 
         serializer = collection.serializers.CollectionRuleSerializer(
             rules, context={"request": request}, many=True
diff --git a/src/newsreader/news/core/tests/endpoints/category/detail/tests.py b/src/newsreader/news/core/tests/endpoints/category/detail/tests.py
index d65fcb7..251023d 100644
--- a/src/newsreader/news/core/tests/endpoints/category/detail/tests.py
+++ b/src/newsreader/news/core/tests/endpoints/category/detail/tests.py
@@ -3,7 +3,7 @@ import json
 from django.test import Client, TestCase
 from django.urls import reverse
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.tests.factories import CollectionRuleFactory
 from newsreader.news.core.tests.factories import CategoryFactory, PostFactory
 
@@ -91,13 +91,17 @@ class CategoryDetailViewTestCase(TestCase):
         category = CategoryFactory(user=self.user)
 
         self.client.force_login(self.user)
-        response = self.client.delete(reverse("api:categories-detail", args=[category.pk]))
+        response = self.client.delete(
+            reverse("api:categories-detail", args=[category.pk])
+        )
 
         self.assertEquals(response.status_code, 204)
 
     def test_rules(self):
         category = CategoryFactory(user=self.user)
-        rules = CollectionRuleFactory.create_batch(size=5, category=category, user=self.user)
+        rules = CollectionRuleFactory.create_batch(
+            size=5, category=category, user=self.user
+        )
 
         self.client.force_login(self.user)
         response = self.client.get(reverse("api:categories-detail", args=[category.pk]))
@@ -149,7 +153,9 @@ class CategoryDetailViewTestCase(TestCase):
             if count < 1:
                 continue
 
-            self.assertTrue(post["publication_date"] < posts[count - 1]["publication_date"])
+            self.assertTrue(
+                post["publication_date"] < posts[count - 1]["publication_date"]
+            )
 
     def test_category_with_unauthenticated_user(self):
         category = CategoryFactory(user=self.user)
diff --git a/src/newsreader/news/core/tests/endpoints/category/list/tests.py b/src/newsreader/news/core/tests/endpoints/category/list/tests.py
index 050a430..974645d 100644
--- a/src/newsreader/news/core/tests/endpoints/category/list/tests.py
+++ b/src/newsreader/news/core/tests/endpoints/category/list/tests.py
@@ -7,7 +7,7 @@ from django.urls import reverse
 
 import pytz
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.tests.factories import CollectionRuleFactory
 from newsreader.news.core.tests.factories import CategoryFactory, PostFactory
 
@@ -83,7 +83,9 @@ class CategoryListViewTestCase(TestCase):
 
         self.client.force_login(self.user)
         response = self.client.post(
-            reverse("api:categories-list"), data=json.dumps(data), content_type="application/json"
+            reverse("api:categories-list"),
+            data=json.dumps(data),
+            content_type="application/json",
         )
         response_data = response.json()
 
diff --git a/src/newsreader/news/core/tests/endpoints/post/detail/tests.py b/src/newsreader/news/core/tests/endpoints/post/detail/tests.py
index e963035..465e2f2 100644
--- a/src/newsreader/news/core/tests/endpoints/post/detail/tests.py
+++ b/src/newsreader/news/core/tests/endpoints/post/detail/tests.py
@@ -3,7 +3,7 @@ import json
 from django.test import Client, TestCase
 from django.urls import reverse
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.tests.factories import CollectionRuleFactory
 from newsreader.news.core.tests.factories import CategoryFactory, PostFactory
 
@@ -17,7 +17,9 @@ class PostDetailViewTestCase(TestCase):
         self.user = UserFactory(is_staff=True, password="test")
 
     def test_simple(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(rule=rule)
 
         self.client.force_login(self.user)
@@ -44,7 +46,9 @@ class PostDetailViewTestCase(TestCase):
         self.assertEquals(data["detail"], "Not found.")
 
     def test_post(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(rule=rule)
 
         self.client.force_login(self.user)
@@ -55,7 +59,9 @@ class PostDetailViewTestCase(TestCase):
         self.assertEquals(data["detail"], 'Method "POST" not allowed.')
 
     def test_patch(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(title="This is clickbait for sure", rule=rule)
 
         self.client.force_login(self.user)
@@ -70,7 +76,9 @@ class PostDetailViewTestCase(TestCase):
         self.assertEquals(data["title"], "This title is very accurate")
 
     def test_identifier_cannot_be_changed(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(title="This is clickbait for sure", rule=rule)
 
         self.client.force_login(self.user)
@@ -85,8 +93,12 @@ class PostDetailViewTestCase(TestCase):
         self.assertEquals(data["id"], post.pk)
 
     def test_rule_cannot_be_changed(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
-        new_rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
+        new_rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(title="This is clickbait for sure", rule=rule)
 
         self.client.force_login(self.user)
@@ -103,7 +115,9 @@ class PostDetailViewTestCase(TestCase):
         self.assertTrue(rule_url.endswith(reverse("api:rules-detail", args=[rule.pk])))
 
     def test_put(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(title="This is clickbait for sure", rule=rule)
 
         self.client.force_login(self.user)
@@ -118,7 +132,9 @@ class PostDetailViewTestCase(TestCase):
         self.assertEquals(data["title"], "This title is very accurate")
 
     def test_delete(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(rule=rule)
 
         self.client.force_login(self.user)
@@ -137,7 +153,9 @@ class PostDetailViewTestCase(TestCase):
         self.assertEquals(response.status_code, 403)
 
     def test_post_with_unauthenticated_user_with_category(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         post = PostFactory(rule=rule)
 
         response = self.client.get(reverse("api:posts-detail", args=[post.pk]))
@@ -156,7 +174,9 @@ class PostDetailViewTestCase(TestCase):
 
     def test_post_with_unauthorized_user_with_category(self):
         other_user = UserFactory()
-        rule = CollectionRuleFactory(user=other_user, category=CategoryFactory(user=other_user))
+        rule = CollectionRuleFactory(
+            user=other_user, category=CategoryFactory(user=other_user)
+        )
         post = PostFactory(rule=rule)
 
         self.client.force_login(self.user)
@@ -166,7 +186,9 @@ class PostDetailViewTestCase(TestCase):
 
     def test_post_with_different_user_for_category_and_rule(self):
         other_user = UserFactory()
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=other_user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=other_user)
+        )
         post = PostFactory(rule=rule)
 
         self.client.force_login(self.user)
diff --git a/src/newsreader/news/core/tests/endpoints/post/list/tests.py b/src/newsreader/news/core/tests/endpoints/post/list/tests.py
index ed1c29e..724d8b2 100644
--- a/src/newsreader/news/core/tests/endpoints/post/list/tests.py
+++ b/src/newsreader/news/core/tests/endpoints/post/list/tests.py
@@ -5,7 +5,7 @@ from django.urls import reverse
 
 import pytz
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.collection.tests.factories import CollectionRuleFactory
 from newsreader.news.core.tests.factories import CategoryFactory, PostFactory
 
@@ -18,7 +18,9 @@ class PostListViewTestCase(TestCase):
         self.user = UserFactory(is_staff=True, password="test")
 
     def test_simple(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         PostFactory.create_batch(size=3, rule=rule)
 
         self.client.force_login(self.user)
@@ -31,7 +33,9 @@ class PostListViewTestCase(TestCase):
         self.assertEquals(data["count"], 3)
 
     def test_ordering(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
 
         posts = [
             PostFactory(
@@ -71,7 +75,9 @@ class PostListViewTestCase(TestCase):
         self.assertEquals(data["results"][2]["id"], posts[0].pk)
 
     def test_pagination_count(self):
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=self.user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=self.user)
+        )
         PostFactory.create_batch(size=80, rule=rule)
         page_size = 50
 
@@ -180,7 +186,9 @@ class PostListViewTestCase(TestCase):
     def test_posts_with_authorized_rule_unauthorized_category(self):
         other_user = UserFactory()
 
-        rule = CollectionRuleFactory(user=self.user, category=CategoryFactory(user=other_user))
+        rule = CollectionRuleFactory(
+            user=self.user, category=CategoryFactory(user=other_user)
+        )
         PostFactory.create_batch(size=3, rule=rule)
 
         self.client.force_login(self.user)
diff --git a/src/newsreader/news/core/tests/factories.py b/src/newsreader/news/core/tests/factories.py
index c4c6d4c..3ccf52d 100644
--- a/src/newsreader/news/core/tests/factories.py
+++ b/src/newsreader/news/core/tests/factories.py
@@ -1,7 +1,7 @@
 import factory
 import pytz
 
-from newsreader.auth.tests.factories import UserFactory
+from newsreader.accounts.tests.factories import UserFactory
 from newsreader.news.core.models import Category, Post
 
 
@@ -21,7 +21,9 @@ class PostFactory(factory.django.DjangoModelFactory):
     url = factory.Faker("url")
     remote_identifier = factory.Faker("url")
 
-    rule = factory.SubFactory("newsreader.news.collection.tests.factories.CollectionRuleFactory")
+    rule = factory.SubFactory(
+        "newsreader.news.collection.tests.factories.CollectionRuleFactory"
+    )
 
     class Meta:
         model = Post
diff --git a/src/newsreader/news/core/urls.py b/src/newsreader/news/core/urls.py
index c207440..c5ccaa9 100644
--- a/src/newsreader/news/core/urls.py
+++ b/src/newsreader/news/core/urls.py
@@ -12,5 +12,7 @@ endpoints = [
     path("posts/", ListPostAPIView.as_view(), name="posts-list"),
     path("posts/<int:pk>/", DetailPostAPIView.as_view(), name="posts-detail"),
     path("categories/", ListCategoryAPIView.as_view(), name="categories-list"),
-    path("categories/<int:pk>/", DetailCategoryAPIView.as_view(), name="categories-detail"),
+    path(
+        "categories/<int:pk>/", DetailCategoryAPIView.as_view(), name="categories-detail"
+    ),
 ]
diff --git a/src/newsreader/news/core/views.py b/src/newsreader/news/core/views.py
index a0559be..415816c 100644
--- a/src/newsreader/news/core/views.py
+++ b/src/newsreader/news/core/views.py
@@ -8,7 +8,7 @@ from rest_framework.generics import (
 )
 from rest_framework.permissions import IsAuthenticated
 
-from newsreader.auth.permissions import IsPostOwner
+from newsreader.accounts.permissions import IsPostOwner
 from newsreader.core.pagination import LargeResultSetPagination, ResultSetPagination
 from newsreader.news.core.models import Category, Post
 from newsreader.news.core.serializers import CategorySerializer, PostSerializer