diff --git a/backend/pyrefly.toml b/backend/pyrefly.toml
index 906a017..718209c 100644
--- a/backend/pyrefly.toml
+++ b/backend/pyrefly.toml
@@ -1,5 +1,5 @@
 [tool.pyrefly]
 
 project-includes = [
-    "./**/*.py",
+    "./**/**/*.py",
 ]
\ No newline at end of file
diff --git a/backend/src/backend/__pycache__/main.cpython-314.pyc b/backend/src/backend/__pycache__/main.cpython-314.pyc
index b5c6ce3..221f8aa 100644
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diff --git a/backend/src/backend/main.py b/backend/src/backend/main.py
index a5c9adc..9920c45 100644
--- a/backend/src/backend/main.py
+++ b/backend/src/backend/main.py
@@ -1,4 +1,4 @@
-from .routers import subscriptions
+from .routers import subscriptions, users
 from backend.internal.database import create_db_and_tables
 from fastapi import APIRouter
 from fastapi import FastAPI
@@ -16,3 +16,4 @@ def on_startup():
 router = APIRouter()
 
 app.include_router(subscriptions.router)
+app.include_router(users.router)
diff --git a/backend/src/backend/models/__pycache__/comment.cpython-314.pyc b/backend/src/backend/models/__pycache__/comment.cpython-314.pyc
new file mode 100644
index 0000000..3611c7f
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diff --git a/backend/src/backend/models/__pycache__/user.cpython-314.pyc b/backend/src/backend/models/__pycache__/user.cpython-314.pyc
new file mode 100644
index 0000000..ce1b3d8
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diff --git a/backend/src/backend/models/comment.py b/backend/src/backend/models/comment.py
index 138c73d..9d15f97 100644
--- a/backend/src/backend/models/comment.py
+++ b/backend/src/backend/models/comment.py
@@ -1,17 +1,20 @@
+import uuid
+from typing import TYPE_CHECKING, Optional
 from sqlmodel import Relationship
-from ..models.user import User
 from sqlmodel import DateTime
 from sqlmodel import Field
-from sqlmodel import UUID
 from sqlmodel import SQLModel
 
+if TYPE_CHECKING:
+    from ..models.user import User
+
 class CommentBase(SQLModel):
     pass
 
 class Comment(CommentBase, table=True):
-    id: UUID | None = Field(default=None, primary_key=True)
+    id: uuid.UUID | None = Field(default_factory=uuid.uuid4, primary_key=True)
     slug: str = Field(index=True)
     content: str = Field()
     date_time: DateTime = Field(default=DateTime())
-    user_id: UUID = Field(foreign_key="user.id")
-    user: User = Relationship(back_populates="comments")
\ No newline at end of file
+    user_id: uuid.UUID = Field(foreign_key="user.id")
+    user: Optional["User"] = Relationship(back_populates="comments")
\ No newline at end of file
diff --git a/backend/src/backend/models/user.py b/backend/src/backend/models/user.py
index a7caf1e..3937665 100644
--- a/backend/src/backend/models/user.py
+++ b/backend/src/backend/models/user.py
@@ -1,17 +1,24 @@
-from unicodedata import name
+import uuid
+from typing import TYPE_CHECKING
 from sqlmodel import Field
-from sqlmodel import UUID
 from sqlmodel import Relationship
-from ..models.comment import Comment
 from sqlmodel import SQLModel
 
+if TYPE_CHECKING:
+    from ..models.comment import Comment
+
 class UserBase(SQLModel):
     pass
 
 class User(UserBase):
-    id: UUID | None = Field(default=None, primary_key=True)
+    id: uuid.UUID | None = Field(default_factory=uuid.uuid4, primary_key=True)
     email: str = Field(unique=True)
     name: str = Field(unique=True)
     user_code: str = Field(unique=True) # TODO: create generation function
     subscription: bool = Field()
-    comments: list[Comment] = Relationship(back_populates="user")
\ No newline at end of file
+    comments: list["Comment"] = Relationship(back_populates="user")
+
+class RegisterUser(UserBase):
+    email: str
+    name: str
+    subscription: bool
diff --git a/backend/src/backend/routers/__pycache__/test_subscriptions.cpython-314-pytest-9.1.1.pyc b/backend/src/backend/routers/__pycache__/test_subscriptions.cpython-314-pytest-9.1.1.pyc
index 8afa31a..1704d6f 100644
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diff --git a/backend/src/backend/routers/__pycache__/test_users.cpython-314-pytest-9.1.1.pyc b/backend/src/backend/routers/__pycache__/test_users.cpython-314-pytest-9.1.1.pyc
new file mode 100644
index 0000000..ee1f03b
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diff --git a/backend/src/backend/routers/__pycache__/users.cpython-314.pyc b/backend/src/backend/routers/__pycache__/users.cpython-314.pyc
new file mode 100644
index 0000000..2c4f339
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diff --git a/backend/src/backend/routers/test_users.py b/backend/src/backend/routers/test_users.py
new file mode 100644
index 0000000..cdf58db
--- /dev/null
+++ b/backend/src/backend/routers/test_users.py
@@ -0,0 +1,15 @@
+from httpx2 import post
+from backend.models.user import RegisterUser
+from backend.main import app
+from fastapi.testclient import TestClient
+
+client = TestClient(app)
+
+def test_register_user_works():
+    new_user = {
+        "email": "Test",
+        "name": "Test1",
+        "subscription": True
+    }
+    response = client.post(url="/users/", json=new_user)
+    assert response.status_code == 200
\ No newline at end of file
diff --git a/backend/src/backend/routers/users.py b/backend/src/backend/routers/users.py
index 1c612f3..3bb20fa 100644
--- a/backend/src/backend/routers/users.py
+++ b/backend/src/backend/routers/users.py
@@ -3,5 +3,23 @@
 # Forgot Code <- email (rate limit)
 # Delete User <- token
 # change mail <- token, new mail
+# subscribe
+# unsubscribe
 
-# delete all deactivated users after 48h
\ No newline at end of file
+# delete all deactivated users after 48h
+
+from backend.internal.database import get_session
+from fastapi import Depends
+from sqlmodel import Session
+from fastapi import APIRouter
+
+router = APIRouter(
+    prefix="/users",
+    tags=["users"],
+    dependencies=[],
+    responses={404: {"description": "Not found"}},
+)
+
+@router.post("/")
+def register_user(session: Session = Depends(get_session)):
+    pass