diff --git a/backend/app/alembic/env.py b/backend/app/alembic/env.py
index b400d56..41eb3ea 100755
--- a/backend/app/alembic/env.py
+++ b/backend/app/alembic/env.py
@@ -19,7 +19,7 @@ fileConfig(config.config_file_name)
 # target_metadata = None
 
 from app.models.base import BaseSQLModel  # noqa
-from app.core.config import settings # noqa
+from app.core.config import settings  # noqa
 
 target_metadata = BaseSQLModel.metadata
 
diff --git a/backend/app/alembic/versions/1a31ce608336_add_cascade_delete_relationships.py b/backend/app/alembic/versions/1a31ce608336_add_cascade_delete_relationships.py
index 10e47a1..61a8018 100644
--- a/backend/app/alembic/versions/1a31ce608336_add_cascade_delete_relationships.py
+++ b/backend/app/alembic/versions/1a31ce608336_add_cascade_delete_relationships.py
@@ -5,33 +5,32 @@ Revises: d98dd8ec85a3
 Create Date: 2024-07-31 22:24:34.447891
 
 """
+
 from alembic import op
 import sqlalchemy as sa
 import sqlmodel.sql.sqltypes
 
 
 # revision identifiers, used by Alembic.
-revision = '1a31ce608336'
-down_revision = 'd98dd8ec85a3'
+revision = "1a31ce608336"
+down_revision = "d98dd8ec85a3"
 branch_labels = None
 depends_on = None
 
 
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.alter_column('item', 'owner_id',
-               existing_type=sa.UUID(),
-               nullable=False)
-    op.drop_constraint('item_owner_id_fkey', 'item', type_='foreignkey')
-    op.create_foreign_key(None, 'item', 'user', ['owner_id'], ['id'], ondelete='CASCADE')
+    op.alter_column("item", "owner_id", existing_type=sa.UUID(), nullable=False)
+    op.drop_constraint("item_owner_id_fkey", "item", type_="foreignkey")
+    op.create_foreign_key(
+        None, "item", "user", ["owner_id"], ["id"], ondelete="CASCADE"
+    )
     # ### end Alembic commands ###
 
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_constraint(None, 'item', type_='foreignkey')
-    op.create_foreign_key('item_owner_id_fkey', 'item', 'user', ['owner_id'], ['id'])
-    op.alter_column('item', 'owner_id',
-               existing_type=sa.UUID(),
-               nullable=True)
+    op.drop_constraint(None, "item", type_="foreignkey")
+    op.create_foreign_key("item_owner_id_fkey", "item", "user", ["owner_id"], ["id"])
+    op.alter_column("item", "owner_id", existing_type=sa.UUID(), nullable=True)
     # ### end Alembic commands ###
diff --git a/backend/app/alembic/versions/9c0a54914c78_add_max_length_for_string_varchar_.py b/backend/app/alembic/versions/9c0a54914c78_add_max_length_for_string_varchar_.py
index 78a4177..f64ca88 100755
--- a/backend/app/alembic/versions/9c0a54914c78_add_max_length_for_string_varchar_.py
+++ b/backend/app/alembic/versions/9c0a54914c78_add_max_length_for_string_varchar_.py
@@ -5,65 +5,90 @@ Revises: e2412789c190
 Create Date: 2024-06-17 14:42:44.639457
 
 """
+
 from alembic import op
 import sqlalchemy as sa
 import sqlmodel.sql.sqltypes
 
 
 # revision identifiers, used by Alembic.
-revision = '9c0a54914c78'
-down_revision = 'e2412789c190'
+revision = "9c0a54914c78"
+down_revision = "e2412789c190"
 branch_labels = None
 depends_on = None
 
 
 def upgrade():
     # Adjust the length of the email field in the User table
-    op.alter_column('user', 'email',
-               existing_type=sa.String(),
-               type_=sa.String(length=255),
-               existing_nullable=False)
+    op.alter_column(
+        "user",
+        "email",
+        existing_type=sa.String(),
+        type_=sa.String(length=255),
+        existing_nullable=False,
+    )
 
     # Adjust the length of the full_name field in the User table
-    op.alter_column('user', 'full_name',
-               existing_type=sa.String(),
-               type_=sa.String(length=255),
-               existing_nullable=True)
+    op.alter_column(
+        "user",
+        "full_name",
+        existing_type=sa.String(),
+        type_=sa.String(length=255),
+        existing_nullable=True,
+    )
 
     # Adjust the length of the title field in the Item table
-    op.alter_column('item', 'title',
-               existing_type=sa.String(),
-               type_=sa.String(length=255),
-               existing_nullable=False)
+    op.alter_column(
+        "item",
+        "title",
+        existing_type=sa.String(),
+        type_=sa.String(length=255),
+        existing_nullable=False,
+    )
 
     # Adjust the length of the description field in the Item table
-    op.alter_column('item', 'description',
-               existing_type=sa.String(),
-               type_=sa.String(length=255),
-               existing_nullable=True)
+    op.alter_column(
+        "item",
+        "description",
+        existing_type=sa.String(),
+        type_=sa.String(length=255),
+        existing_nullable=True,
+    )
 
 
 def downgrade():
     # Revert the length of the email field in the User table
-    op.alter_column('user', 'email',
-               existing_type=sa.String(length=255),
-               type_=sa.String(),
-               existing_nullable=False)
+    op.alter_column(
+        "user",
+        "email",
+        existing_type=sa.String(length=255),
+        type_=sa.String(),
+        existing_nullable=False,
+    )
 
     # Revert the length of the full_name field in the User table
-    op.alter_column('user', 'full_name',
-               existing_type=sa.String(length=255),
-               type_=sa.String(),
-               existing_nullable=True)
+    op.alter_column(
+        "user",
+        "full_name",
+        existing_type=sa.String(length=255),
+        type_=sa.String(),
+        existing_nullable=True,
+    )
 
     # Revert the length of the title field in the Item table
-    op.alter_column('item', 'title',
-               existing_type=sa.String(length=255),
-               type_=sa.String(),
-               existing_nullable=False)
+    op.alter_column(
+        "item",
+        "title",
+        existing_type=sa.String(length=255),
+        type_=sa.String(),
+        existing_nullable=False,
+    )
 
     # Revert the length of the description field in the Item table
-    op.alter_column('item', 'description',
-               existing_type=sa.String(length=255),
-               type_=sa.String(),
-               existing_nullable=True)
+    op.alter_column(
+        "item",
+        "description",
+        existing_type=sa.String(length=255),
+        type_=sa.String(),
+        existing_nullable=True,
+    )
diff --git a/backend/app/alembic/versions/d98dd8ec85a3_edit_replace_id_integers_in_all_models_.py b/backend/app/alembic/versions/d98dd8ec85a3_edit_replace_id_integers_in_all_models_.py
index 37af1fa..962ab46 100755
--- a/backend/app/alembic/versions/d98dd8ec85a3_edit_replace_id_integers_in_all_models_.py
+++ b/backend/app/alembic/versions/d98dd8ec85a3_edit_replace_id_integers_in_all_models_.py
@@ -5,6 +5,7 @@ Revises: 9c0a54914c78
 Create Date: 2024-07-19 04:08:04.000976
 
 """
+
 from alembic import op
 import sqlalchemy as sa
 import sqlmodel.sql.sqltypes
@@ -12,8 +13,8 @@ from sqlalchemy.dialects import postgresql
 
 
 # revision identifiers, used by Alembic.
-revision = 'd98dd8ec85a3'
-down_revision = '9c0a54914c78'
+revision = "d98dd8ec85a3"
+down_revision = "9c0a54914c78"
 branch_labels = None
 depends_on = None
 
@@ -23,68 +24,97 @@ def upgrade():
     op.execute('CREATE EXTENSION IF NOT EXISTS "uuid-ossp"')
 
     # Create a new UUID column with a default UUID value
-    op.add_column('user', sa.Column('new_id', postgresql.UUID(as_uuid=True), default=sa.text('uuid_generate_v4()')))
-    op.add_column('item', sa.Column('new_id', postgresql.UUID(as_uuid=True), default=sa.text('uuid_generate_v4()')))
-    op.add_column('item', sa.Column('new_owner_id', postgresql.UUID(as_uuid=True), nullable=True))
+    op.add_column(
+        "user",
+        sa.Column(
+            "new_id",
+            postgresql.UUID(as_uuid=True),
+            default=sa.text("uuid_generate_v4()"),
+        ),
+    )
+    op.add_column(
+        "item",
+        sa.Column(
+            "new_id",
+            postgresql.UUID(as_uuid=True),
+            default=sa.text("uuid_generate_v4()"),
+        ),
+    )
+    op.add_column(
+        "item", sa.Column("new_owner_id", postgresql.UUID(as_uuid=True), nullable=True)
+    )
 
     # Populate the new columns with UUIDs
     op.execute('UPDATE "user" SET new_id = uuid_generate_v4()')
-    op.execute('UPDATE item SET new_id = uuid_generate_v4()')
-    op.execute('UPDATE item SET new_owner_id = (SELECT new_id FROM "user" WHERE "user".id = item.owner_id)')
+    op.execute("UPDATE item SET new_id = uuid_generate_v4()")
+    op.execute(
+        'UPDATE item SET new_owner_id = (SELECT new_id FROM "user" WHERE "user".id = item.owner_id)'
+    )
 
     # Set the new_id as not nullable
-    op.alter_column('user', 'new_id', nullable=False)
-    op.alter_column('item', 'new_id', nullable=False)
+    op.alter_column("user", "new_id", nullable=False)
+    op.alter_column("item", "new_id", nullable=False)
 
     # Drop old columns and rename new columns
-    op.drop_constraint('item_owner_id_fkey', 'item', type_='foreignkey')
-    op.drop_column('item', 'owner_id')
-    op.alter_column('item', 'new_owner_id', new_column_name='owner_id')
+    op.drop_constraint("item_owner_id_fkey", "item", type_="foreignkey")
+    op.drop_column("item", "owner_id")
+    op.alter_column("item", "new_owner_id", new_column_name="owner_id")
 
-    op.drop_column('user', 'id')
-    op.alter_column('user', 'new_id', new_column_name='id')
+    op.drop_column("user", "id")
+    op.alter_column("user", "new_id", new_column_name="id")
 
-    op.drop_column('item', 'id')
-    op.alter_column('item', 'new_id', new_column_name='id')
+    op.drop_column("item", "id")
+    op.alter_column("item", "new_id", new_column_name="id")
 
     # Create primary key constraint
-    op.create_primary_key('user_pkey', 'user', ['id'])
-    op.create_primary_key('item_pkey', 'item', ['id'])
+    op.create_primary_key("user_pkey", "user", ["id"])
+    op.create_primary_key("item_pkey", "item", ["id"])
 
     # Recreate foreign key constraint
-    op.create_foreign_key('item_owner_id_fkey', 'item', 'user', ['owner_id'], ['id'])
+    op.create_foreign_key("item_owner_id_fkey", "item", "user", ["owner_id"], ["id"])
+
 
 def downgrade():
     # Reverse the upgrade process
-    op.add_column('user', sa.Column('old_id', sa.Integer, autoincrement=True))
-    op.add_column('item', sa.Column('old_id', sa.Integer, autoincrement=True))
-    op.add_column('item', sa.Column('old_owner_id', sa.Integer, nullable=True))
+    op.add_column("user", sa.Column("old_id", sa.Integer, autoincrement=True))
+    op.add_column("item", sa.Column("old_id", sa.Integer, autoincrement=True))
+    op.add_column("item", sa.Column("old_owner_id", sa.Integer, nullable=True))
 
     # Populate the old columns with default values
     # Generate sequences for the integer IDs if not exist
-    op.execute('CREATE SEQUENCE IF NOT EXISTS user_id_seq AS INTEGER OWNED BY "user".old_id')
-    op.execute('CREATE SEQUENCE IF NOT EXISTS item_id_seq AS INTEGER OWNED BY item.old_id')
+    op.execute(
+        'CREATE SEQUENCE IF NOT EXISTS user_id_seq AS INTEGER OWNED BY "user".old_id'
+    )
+    op.execute(
+        "CREATE SEQUENCE IF NOT EXISTS item_id_seq AS INTEGER OWNED BY item.old_id"
+    )
 
-    op.execute('SELECT setval(\'user_id_seq\', COALESCE((SELECT MAX(old_id) + 1 FROM "user"), 1), false)')
-    op.execute('SELECT setval(\'item_id_seq\', COALESCE((SELECT MAX(old_id) + 1 FROM item), 1), false)')
+    op.execute(
+        "SELECT setval('user_id_seq', COALESCE((SELECT MAX(old_id) + 1 FROM \"user\"), 1), false)"
+    )
+    op.execute(
+        "SELECT setval('item_id_seq', COALESCE((SELECT MAX(old_id) + 1 FROM item), 1), false)"
+    )
 
-    op.execute('UPDATE "user" SET old_id = nextval(\'user_id_seq\')')
-    op.execute('UPDATE item SET old_id = nextval(\'item_id_seq\'), old_owner_id = (SELECT old_id FROM "user" WHERE "user".id = item.owner_id)')
+    op.execute("UPDATE \"user\" SET old_id = nextval('user_id_seq')")
+    op.execute(
+        'UPDATE item SET old_id = nextval(\'item_id_seq\'), old_owner_id = (SELECT old_id FROM "user" WHERE "user".id = item.owner_id)'
+    )
 
     # Drop new columns and rename old columns back
-    op.drop_constraint('item_owner_id_fkey', 'item', type_='foreignkey')
-    op.drop_column('item', 'owner_id')
-    op.alter_column('item', 'old_owner_id', new_column_name='owner_id')
+    op.drop_constraint("item_owner_id_fkey", "item", type_="foreignkey")
+    op.drop_column("item", "owner_id")
+    op.alter_column("item", "old_owner_id", new_column_name="owner_id")
 
-    op.drop_column('user', 'id')
-    op.alter_column('user', 'old_id', new_column_name='id')
+    op.drop_column("user", "id")
+    op.alter_column("user", "old_id", new_column_name="id")
 
-    op.drop_column('item', 'id')
-    op.alter_column('item', 'old_id', new_column_name='id')
+    op.drop_column("item", "id")
+    op.alter_column("item", "old_id", new_column_name="id")
 
     # Create primary key constraint
-    op.create_primary_key('user_pkey', 'user', ['id'])
-    op.create_primary_key('item_pkey', 'item', ['id'])
+    op.create_primary_key("user_pkey", "user", ["id"])
+    op.create_primary_key("item_pkey", "item", ["id"])
 
     # Recreate foreign key constraint
-    op.create_foreign_key('item_owner_id_fkey', 'item', 'user', ['owner_id'], ['id'])
+    op.create_foreign_key("item_owner_id_fkey", "item", "user", ["owner_id"], ["id"])
diff --git a/backend/app/alembic/versions/e2412789c190_initialize_models.py b/backend/app/alembic/versions/e2412789c190_initialize_models.py
index 7529ea9..e8b8cac 100644
--- a/backend/app/alembic/versions/e2412789c190_initialize_models.py
+++ b/backend/app/alembic/versions/e2412789c190_initialize_models.py
@@ -5,6 +5,7 @@ Revises:
 Create Date: 2023-11-24 22:55:43.195942
 
 """
+
 import sqlalchemy as sa
 import sqlmodel.sql.sqltypes
 from alembic import op
diff --git a/backend/app/core/config.py b/backend/app/core/config.py
index d58e03c..4316a4e 100644
--- a/backend/app/core/config.py
+++ b/backend/app/core/config.py
@@ -38,9 +38,9 @@ class Settings(BaseSettings):
     FRONTEND_HOST: str = "http://localhost:5173"
     ENVIRONMENT: Literal["local", "staging", "production"] = "local"
 
-    BACKEND_CORS_ORIGINS: Annotated[
-        list[AnyUrl] | str, BeforeValidator(parse_cors)
-    ] = []
+    BACKEND_CORS_ORIGINS: Annotated[list[AnyUrl] | str, BeforeValidator(parse_cors)] = (
+        []
+    )
 
     @computed_field  # type: ignore[prop-decorator]
     @property
diff --git a/backend/app/models/base.py b/backend/app/models/base.py
index a96a8ba..2830a02 100644
--- a/backend/app/models/base.py
+++ b/backend/app/models/base.py
@@ -9,6 +9,7 @@ from uuid import UUID as RowId
 class BaseSQLModel(SQLModel):
     pass
 
+
 # endregion
 
 # region Generic message #######################################################