diff --git a/core/api/updates/__init__.py b/core/api/updates/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/core/api/updates/handlers.py b/core/api/updates/handlers.py
new file mode 100644
index 0000000..0e2f7ac
--- /dev/null
+++ b/core/api/updates/handlers.py
@@ -0,0 +1,18 @@
+from fastapi import APIRouter, Path
+
+router = APIRouter(prefix="/update")
+
+
+@router.get('/check/{program_name}')
+def check_update(program_name: str = Path()):
+    pass
+
+
+@router.get('/download/{program_name}')
+def download_latest_update(program_name: str = Path()):
+    pass
+
+
+@router.get("/download/{program_name}/{version}")
+def download_specific_version(program_name: str = Path(), version: str = Path()):
+    pass
diff --git a/core/external/__init__.py b/core/external/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/core/external/base.py b/core/external/base.py
new file mode 100644
index 0000000..e19f67f
--- /dev/null
+++ b/core/external/base.py
@@ -0,0 +1,12 @@
+import abc
+from config import Settings
+
+
+class ExternalService(abc.ABC):
+    @abc.abstractmethod
+    async def connect(self, config: Settings):
+        raise NotImplemented()
+
+    @abc.abstractmethod
+    async def get_session(self):
+        raise NotImplemented()
diff --git a/core/external/s3.py b/core/external/s3.py
new file mode 100644
index 0000000..e69de29
diff --git a/core/graphql/__init__.py b/core/graphql/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/core/models/update/db.py b/core/models/update/db.py
index a14a153..ce8a3a8 100644
--- a/core/models/update/db.py
+++ b/core/models/update/db.py
@@ -5,9 +5,10 @@ from database import Base
 
 
 class MPUpdate(Base):
+    __tablename__ = "MP_UPDATE"
     id: Mapped[int] = mapped_column(autoincrement=True, primary_key=True)
     version: Mapped[str] = mapped_column(nullable=False)
-    program_id: Mapped[int] = mapped_column(ForeignKey("MPProgram.id", ondelete="CASCADE"))
+    program_id: Mapped[int] = mapped_column(ForeignKey("MP_PROGRAM.id", ondelete="CASCADE"))
     description: Mapped[str | None] = mapped_column(nullable=True)
     download_link_android: Mapped[str | None] = mapped_column(nullable=True)
     download_link_ios: Mapped[str | None] = mapped_column(nullable=True)
@@ -15,5 +16,15 @@ class MPUpdate(Base):
 
 
 class MPProgram(Base):
+    __tablename__ = "MP_PROGRAM"
     id: Mapped[int] = mapped_column(autoincrement=True, primary_key=True)
     name: Mapped[str]
+
+
+class MPUser(Base):
+    __tablename__ = "MP_USER"
+    id: Mapped[int] = mapped_column(autoincrement=True, primary_key=True)
+    username: Mapped[str] = mapped_column(nullable=False)
+    email: Mapped[str] = mapped_column(nullable=False)
+    password: Mapped[str] = mapped_column(nullable=False)
+    is_active: Mapped[bool] = mapped_column(nullable=False)