diff --git a/app/db/models.py b/app/db/models.py
new file mode 100644
index 0000000..3028134
--- /dev/null
+++ b/app/db/models.py
@@ -0,0 +1,110 @@
+from datetime import date
+from sqlalchemy import (
+    sa,
+    Column, 
+    Integer, 
+    String, 
+    Boolean,
+    Date,
+    Enum,
+    ForeignKey
+)
+from sqlalchemy.orm import DeclarativeBase, relationship
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+class User(Base):
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    email = Column(String, unique=True, index=True)
+    username = Column(String, unique=True, index=True)
+    hashed_password = Column(String)
+    stats = Column(String)
+    is_active = Column(Boolean, default=True)
+
+    tasks = relationship("Item", back_populates="owner")
+    events = relationship("Event", back_populates="owner")
+    goals = relationship("Goal", back_populates="owner")
+    sub_goals = relationship("SubGoal", back_populates="owner")
+    notes = relationship("Note", back_populates="owner")
+
+
+class Task(Base):
+    __tablename__ = "tasks"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    description = Column(String, index=True, nullable=False)
+    frequency = Column(Integer, default=4223, nullable=False)
+    reward = Column(Integer, nullable=True)
+    goal_id = Column(Integer, ForeignKey("goals.id"), default=None, nullable=True)
+    owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+
+    start_date = Column(Date, server_default=sa.text("CURRENT_DATE"), nullable=False)
+    next_date = Column(Date, nullable=True)
+
+    owner = relationship("User", back_populates="tasks")
+    goal = relationship("Goal", back_populates="tasks")
+
+
+class Event(Base):
+    __tablename__ = "events"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    name = Column(String, index=True, nullable=False)
+    description = Column(String, index=True, nullable=True)
+    frequency = Column(Integer, default=4223, nullable=False)
+    owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+
+    owner = relationship("User", back_populates="events")
+
+
+class Goal(Base):
+    __tablename__ = "goals"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    title = Column(String, index=True, nullable=False)
+    description = Column(String, index=True, nullable=True)
+    state = Column(Enum("in_progress", "successful", "failed", "aborted"), default="in_progress", nullable=False)
+    owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+
+    tasks = relationship("Task", back_populates="goal")
+    notes = relationship("Note", back_populates="goal")
+    sub_goals = relationship("SubGoal", back_populates="goal")
+    owner = relationship("User", back_populates="goals")
+
+
+class SubGoal(Base):
+    __tablename__ = "sub_goals"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    title = Column(String, index=True, nullable=False)
+    description = Column(String, index=True, nullable=True)
+    state = Column(Enum("in_progress", "successful", "failed", "aborted"), default="in_progress", nullable=False)
+    reward = Column(Integer, nullable=True)
+    goal_id = Column(Integer, ForeignKey("goals.id"), nullable=False)
+    owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+
+    goal = relationship("Goal", back_populates="sub_goals")
+    owner = relationship("User", back_populates="sub_goals")
+
+
+class Note(Base):
+    __tablename__ = "notes"
+
+    id = Column(Integer, primary_key=True, index=True, autoincrement=True)
+    title = Column(String, index=True, nullable=False)
+    description = Column(String, index=True, nullable=True)
+    content = Column(String, index=True, nullable=True)
+    goal_id = Column(Integer, ForeignKey("goals.id"), nullable=True)
+    owner_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+
+    created_at = Column(Date, server_default=sa.text("CURRENT_DATE"), nullable=False)
+    updated_at = Column(Date, server_default=sa.text("CURRENT_DATE"), nullable=False)
+
+    goal = relationship("Goal", back_populates="notes")
+    owner = relationship("User", back_populates="notes")
+
diff --git a/app/models.py b/app/models.py
deleted file mode 100644
index e69de29..0000000