diff --git a/backend/app/db/database.py b/backend/app/db/database.py
index 6717f45..955adb5 100644
--- a/backend/app/db/database.py
+++ b/backend/app/db/database.py
@@ -61,6 +61,8 @@ async def init_db() -> None:
             await conn.exec_driver_sql("ALTER TABLE nodes ADD COLUMN bottom_handles INTEGER NOT NULL DEFAULT 1")
         with suppress(OperationalError):
             await conn.exec_driver_sql("ALTER TABLE pending_devices ADD COLUMN discovery_source TEXT")
+        with suppress(OperationalError):
+            await conn.exec_driver_sql("ALTER TABLE edges ADD COLUMN waypoints JSON")
         # Migrate animated column from boolean (0/1) to string ('none'/'snake')
         with suppress(OperationalError):
             await conn.exec_driver_sql("UPDATE edges SET animated = 'snake' WHERE animated = '1' OR animated = 1")
diff --git a/backend/app/db/models.py b/backend/app/db/models.py
index 0aac1b0..903dbc6 100644
--- a/backend/app/db/models.py
+++ b/backend/app/db/models.py
@@ -69,6 +69,7 @@ class Edge(Base):
     animated: Mapped[str] = mapped_column(String, nullable=False, default='none')
     source_handle: Mapped[str | None] = mapped_column(String)
     target_handle: Mapped[str | None] = mapped_column(String)
+    waypoints: Mapped[list | None] = mapped_column(JSON, nullable=True)
     created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
 
 
diff --git a/backend/app/schemas/canvas.py b/backend/app/schemas/canvas.py
index 5f1e5d4..ea2ec7d 100644
--- a/backend/app/schemas/canvas.py
+++ b/backend/app/schemas/canvas.py
@@ -49,6 +49,7 @@ class EdgeSave(BaseModel):
     animated: str = 'none'
     source_handle: str | None = None
     target_handle: str | None = None
+    waypoints: list | None = None
 
     @field_validator('animated', mode='before')
     @classmethod
diff --git a/backend/app/schemas/edges.py b/backend/app/schemas/edges.py
index a663806..9c83d8a 100644
--- a/backend/app/schemas/edges.py
+++ b/backend/app/schemas/edges.py
@@ -17,6 +17,7 @@ class EdgeBase(BaseModel):
     animated: str = 'none'
     source_handle: str | None = None
     target_handle: str | None = None
+    waypoints: list | None = None
 
     @field_validator('animated', mode='before')
     @classmethod
@@ -38,6 +39,7 @@ class EdgeUpdate(BaseModel):
     animated: str | None = None
     source_handle: str | None = None
     target_handle: str | None = None
+    waypoints: list | None = None
 
     @field_validator('animated', mode='before')
     @classmethod