diff --git a/backend/app/models/models.py b/backend/app/models/models.py
index 6a3b975..e857f99 100644
--- a/backend/app/models/models.py
+++ b/backend/app/models/models.py
@@ -25,7 +25,7 @@ class User(Base):
     bio = Column(Text, nullable=True)
     password = Column(String(255), nullable=False)
     role = Column(String(50), default="user")
-    last_login = Column(DateTime(timezone=True), nullable=True)  # 最后登录时间
+    # last_login = Column(DateTime(timezone=True), nullable=True)
     f99_92_created_at = Column(DateTime(timezone=True), server_default=func.now())
     f99_93_updated_at = Column(DateTime(timezone=True), onupdate=func.now())
 
diff --git a/start.sh b/start.sh
new file mode 100755
index 0000000..c6dcf0a
--- /dev/null
+++ b/start.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+cd /root/jiachenlong/backend
+export DATABASE_URL=postgresql://caibot:caibot123@47.98.171.101:5432/zodiac
+export SECRET_KEY=production-secret-key-a-env
+export OSS_ACCESS_KEY_ID=LTAI5t6HUnpFBLEK9194kPVG
+export OSS_ACCESS_KEY_SECRET=LEr4Q8yRxb8D5b24cKfCwlt4MMoke1
+export SMS_ACCESS_KEY_ID=LTAI5tQAx5niD7JQVqGE5acE
+export SMS_ACCESS_KEY_SECRET=QsQFAEKBkaNynIoKyvdIi3BUyWVZu1
+export SMS_SIGN_NAME=苏州算力
+export SMS_TEMPLATE_CODE=SMS_501590956
+nohup python3 -m uvicorn app.main:app --host 0.0.0.0 --port 3000 > /tmp/uvicorn.log 2>&1 &
+echo "后端服务已启动"