diff --git a/backend/src/backend/__pycache__/main.cpython-314.pyc b/backend/src/backend/__pycache__/main.cpython-314.pyc
index 3b270fe..b5c6ce3 100644
Binary files a/backend/src/backend/__pycache__/main.cpython-314.pyc and b/backend/src/backend/__pycache__/main.cpython-314.pyc differ
diff --git a/backend/src/backend/main.py b/backend/src/backend/main.py
index adf3598..a5c9adc 100644
--- a/backend/src/backend/main.py
+++ b/backend/src/backend/main.py
@@ -4,8 +4,6 @@ from fastapi import APIRouter
 from fastapi import FastAPI
 
 
-# TODO: Security and CORS
-# TODO: Api Specs definieren (Subscription, Comment, Like)
 # TODO: Settings hinzufügen
 # TODO: Deploy
 
diff --git a/backend/src/backend/models/__pycache__/subscription.cpython-314.pyc b/backend/src/backend/models/__pycache__/subscription.cpython-314.pyc
index 2312fba..c0fd5b7 100644
Binary files a/backend/src/backend/models/__pycache__/subscription.cpython-314.pyc and b/backend/src/backend/models/__pycache__/subscription.cpython-314.pyc differ
diff --git a/backend/src/backend/models/comment.py b/backend/src/backend/models/comment.py
new file mode 100644
index 0000000..7151713
--- /dev/null
+++ b/backend/src/backend/models/comment.py
@@ -0,0 +1,3 @@
+
+# Comment: id, slug, content, datetime, foreign key: user 
+
diff --git a/backend/src/backend/models/reaction.py b/backend/src/backend/models/reaction.py
new file mode 100644
index 0000000..49164ae
--- /dev/null
+++ b/backend/src/backend/models/reaction.py
@@ -0,0 +1,8 @@
+
+# Reaction: slug and visitor_hash[(UUID or IP from Header) and salt] (foreign_key)
+
+#Reference: https://isaacfei.com/posts/simple-like-system/
+
+# addReaction
+# delete Reaction
+# get Reactions by slug
\ No newline at end of file
diff --git a/backend/src/backend/models/subscription.py b/backend/src/backend/models/subscription.py
index 24de41c..5db2dc6 100644
--- a/backend/src/backend/models/subscription.py
+++ b/backend/src/backend/models/subscription.py
@@ -9,3 +9,4 @@ class Subscription(SubscriptionBase, table=True):
     id: int | None = Field(default=None, primary_key=True)
     active: bool = Field(default=True)
     
+# TODO: move to user
\ No newline at end of file
diff --git a/backend/src/backend/models/user.py b/backend/src/backend/models/user.py
new file mode 100644
index 0000000..4fd7120
--- /dev/null
+++ b/backend/src/backend/models/user.py
@@ -0,0 +1,8 @@
+
+# User: id, email(unique), name(unique), usercode(f.e. WLAID, unique) , subscription(bool), active=false
+
+# CreateUser <- mail, Name
+# Login Rate Limit! -> token for everything else
+# Forgot Code <- token, email
+# Delete User <- token
+# change mail <- token, mail
\ No newline at end of file