diff --git a/.env.example b/.env.example
index cc5b09b..bde44aa 100644
--- a/.env.example
+++ b/.env.example
@@ -2,7 +2,7 @@
 LETTERFEED_APP_BASE_URL=http://localhost:3000
 
 # The database URL. Change this if you change the volume mount point
-LETTERFEED_DATABASE_URL=sqlite:////data/letterfeed.db 
+LETTERFEED_DATABASE_URL=sqlite:////data/letterfeed.db
 
 # IMAP server settings. Must have IMAP over SSL on port 993
 LETTERFEED_IMAP_SERVER=
diff --git a/README.md b/README.md
index 71dbbfd..a3c2600 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ LetterFeed is a self-hosted application that converts email newsletters into RSS
     cp .env.example .env
     ```
 
-    Edit the `.env` file with your specific settings. 
+    Edit the `.env` file with your specific settings.
 
 3.  **Build and run the Docker containers:**
 
@@ -134,4 +134,3 @@ cd backend
 uv sync --group test
 uvicorn app.main:app --reload
 ```
-
diff --git a/backend/app/crud/__init__.py b/backend/app/crud/__init__.py
index 7084aa1..aca9e26 100644
--- a/backend/app/crud/__init__.py
+++ b/backend/app/crud/__init__.py
@@ -1 +1 @@
-"""CRUD operations for database models."""
\ No newline at end of file
+"""CRUD operations for database models."""
diff --git a/backend/app/models/__init__.py b/backend/app/models/__init__.py
index 53a9b56..8479564 100644
--- a/backend/app/models/__init__.py
+++ b/backend/app/models/__init__.py
@@ -1 +1 @@
-"""SQLAlchemy models for the database."""
\ No newline at end of file
+"""SQLAlchemy models for the database."""
diff --git a/backend/app/models/newsletters.py b/backend/app/models/newsletters.py
index 7ca2f65..a69cc62 100644
--- a/backend/app/models/newsletters.py
+++ b/backend/app/models/newsletters.py
@@ -6,6 +6,7 @@ from app.core.database import Base
 
 class Newsletter(Base):
     """Represents a newsletter, which can have multiple senders and entries."""
+
     __tablename__ = "newsletters"
 
     id = Column(Integer, primary_key=True, index=True)
@@ -22,6 +23,7 @@ class Newsletter(Base):
 
 class Sender(Base):
     """Represents an email sender associated with a newsletter."""
+
     __tablename__ = "senders"
 
     id = Column(Integer, primary_key=True, index=True)
diff --git a/backend/app/models/settings.py b/backend/app/models/settings.py
index c11a21d..2c38583 100644
--- a/backend/app/models/settings.py
+++ b/backend/app/models/settings.py
@@ -5,6 +5,7 @@ from app.core.database import Base
 
 class Settings(Base):
     """Represents application settings, including IMAP configuration."""
+
     __tablename__ = "settings"
 
     id = Column(Integer, primary_key=True, index=True)
diff --git a/backend/app/routers/__init__.py b/backend/app/routers/__init__.py
index a9555d9..b4aa793 100644
--- a/backend/app/routers/__init__.py
+++ b/backend/app/routers/__init__.py
@@ -1 +1 @@
-"""API routers for the application."""
\ No newline at end of file
+"""API routers for the application."""
diff --git a/backend/app/schemas/__init__.py b/backend/app/schemas/__init__.py
index 2e60313..e59418c 100644
--- a/backend/app/schemas/__init__.py
+++ b/backend/app/schemas/__init__.py
@@ -1 +1 @@
-"""Pydantic schemas for data validation and serialization."""
\ No newline at end of file
+"""Pydantic schemas for data validation and serialization."""
diff --git a/backend/app/schemas/newsletters.py b/backend/app/schemas/newsletters.py
index eb0d269..60fea97 100644
--- a/backend/app/schemas/newsletters.py
+++ b/backend/app/schemas/newsletters.py
@@ -5,16 +5,19 @@ from pydantic import BaseModel, ConfigDict
 
 class SenderBase(BaseModel):
     """Base schema for a sender."""
+
     email: str
 
 
 class SenderCreate(SenderBase):
     """Schema for creating a new sender."""
+
     pass
 
 
 class Sender(SenderBase):
     """Schema for retrieving a sender with its ID and newsletter ID."""
+
     id: int
     newsletter_id: int
 
@@ -23,21 +26,25 @@ class Sender(SenderBase):
 
 class NewsletterBase(BaseModel):
     """Base schema for a newsletter."""
+
     name: str
 
 
 class NewsletterCreate(NewsletterBase):
     """Schema for creating a new newsletter."""
+
     sender_emails: List[str]
 
 
 class NewsletterUpdate(NewsletterBase):
     """Schema for updating an existing newsletter."""
+
     sender_emails: List[str]
 
 
 class Newsletter(NewsletterBase):
     """Schema for retrieving a newsletter with its ID, active status, senders, and entries count."""
+
     id: int
     is_active: bool
     senders: List[Sender] = []
diff --git a/backend/app/schemas/settings.py b/backend/app/schemas/settings.py
index 62d1ae7..6f9e70b 100644
--- a/backend/app/schemas/settings.py
+++ b/backend/app/schemas/settings.py
@@ -5,6 +5,7 @@ from pydantic import BaseModel, ConfigDict, Field
 
 class SettingsBase(BaseModel):
     """Base schema for application settings."""
+
     imap_server: str
     imap_username: str
     search_folder: str = "INBOX"
@@ -16,11 +17,13 @@ class SettingsBase(BaseModel):
 
 class SettingsCreate(SettingsBase):
     """Schema for creating or updating settings, including the IMAP password."""
+
     imap_password: str
 
 
 class Settings(SettingsBase):
     """Schema for retrieving settings, with password excluded by default."""
+
     id: int
     imap_password: str | None = Field(None, exclude=True)
     locked_fields: List[str] = []
diff --git a/backend/app/services/__init__.py b/backend/app/services/__init__.py
index 8b5a65b..07237ed 100644
--- a/backend/app/services/__init__.py
+++ b/backend/app/services/__init__.py
@@ -1 +1 @@
-"""Application services for business logic."""
\ No newline at end of file
+"""Application services for business logic."""
diff --git a/backend/app/tests/__init__.py b/backend/app/tests/__init__.py
index 3044484..b96599b 100644
--- a/backend/app/tests/__init__.py
+++ b/backend/app/tests/__init__.py
@@ -1 +1 @@
-"""Unit tests for the application."""
\ No newline at end of file
+"""Unit tests for the application."""
diff --git a/docker-compose.dev.yml b/docker-compose.dev.yml
index 9bb9cb8..8ea992f 100644
--- a/docker-compose.dev.yml
+++ b/docker-compose.dev.yml
@@ -28,4 +28,4 @@ volumes:
 
 networks:
   letterfeed_network:
-    driver: bridge 
+    driver: bridge
diff --git a/frontend/components/ui/components.json b/frontend/components/ui/components.json
index ffe928f..3289f23 100644
--- a/frontend/components/ui/components.json
+++ b/frontend/components/ui/components.json
@@ -18,4 +18,4 @@
     "hooks": "@/hooks"
   },
   "iconLibrary": "lucide"
-}
\ No newline at end of file
+}
diff --git a/frontend/src/lib/api.ts b/frontend/src/lib/api.ts
index 1db62ad..5336fb4 100644
--- a/frontend/src/lib/api.ts
+++ b/frontend/src/lib/api.ts
@@ -151,4 +151,3 @@ export async function processEmails(): Promise<{ message: string }> {
 export function getFeedUrl(newsletterId: number): string {
     return `${API_BASE_URL}/feeds/${newsletterId}`;
 }
-