diff --git a/.env.example b/.env.example
index 6a40fdd..7df9ef3 100644
--- a/.env.example
+++ b/.env.example
@@ -17,3 +17,9 @@ POSTGRES_URL=****
 # Instructions to create a Redis store here:
 # https://vercel.com/docs/redis
 REDIS_URL=****
+
+# Get your DeepSeek API Key here for chat and image models
+DEEPSEEK_API_KEY=****
+
+# Supabase PostgreSQL database
+SUPABASE_POSTGRES_URL=****
diff --git a/.github/workflows/playwright.yml b/.github/workflows/playwright.yml
index 7c66256..03fb851 100644
--- a/.github/workflows/playwright.yml
+++ b/.github/workflows/playwright.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       AUTH_SECRET: ${{ secrets.AUTH_SECRET }}
-      POSTGRES_URL: ${{ secrets.POSTGRES_URL }}
+      SUPABASE_POSTGRES_URL: ${{ secrets.SUPABASE_POSTGRES_URL }}
       BLOB_READ_WRITE_TOKEN: ${{ secrets.BLOB_READ_WRITE_TOKEN }}
       REDIS_URL: ${{ secrets.REDIS_URL }}
 
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 02a0ffa..b755e9a 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -15,5 +15,5 @@
     "source.fixAll": "explicit"
     // "source.organizeImports": "explicit"
   },
-  "cSpell.words": ["deepseek"]
+  "cSpell.words": ["deepseek", "SUPABASE"]
 }
diff --git a/drizzle.config.ts b/drizzle.config.ts
index 7c4a841..0ec27ce 100644
--- a/drizzle.config.ts
+++ b/drizzle.config.ts
@@ -11,6 +11,6 @@ export default defineConfig({
   dialect: 'postgresql',
   dbCredentials: {
     // biome-ignore lint: Forbidden non-null assertion.
-    url: process.env.POSTGRES_URL!,
+    url: process.env.SUPABASE_POSTGRES_URL!,
   },
 });
diff --git a/lib/db/helpers/01-core-to-parts.ts b/lib/db/helpers/01-core-to-parts.ts
index 81c2693..1c6575c 100644
--- a/lib/db/helpers/01-core-to-parts.ts
+++ b/lib/db/helpers/01-core-to-parts.ts
@@ -16,11 +16,11 @@ config({
   path: '.env.local',
 });
 
-if (!process.env.POSTGRES_URL) {
-  throw new Error('POSTGRES_URL environment variable is not set');
+if (!process.env.SUPABASE_POSTGRES_URL) {
+  throw new Error('SUPABASE_POSTGRES_URL environment variable is not set');
 }
 
-const client = postgres(process.env.POSTGRES_URL);
+const client = postgres(process.env.SUPABASE_POSTGRES_URL);
 const db = drizzle(client);
 
 const BATCH_SIZE = 100; // Process 100 chats at a time
diff --git a/lib/db/migrate.ts b/lib/db/migrate.ts
index 1280e75..deed34a 100644
--- a/lib/db/migrate.ts
+++ b/lib/db/migrate.ts
@@ -8,11 +8,11 @@ config({
 });
 
 const runMigrate = async () => {
-  if (!process.env.POSTGRES_URL) {
-    throw new Error('POSTGRES_URL is not defined');
+  if (!process.env.SUPABASE_POSTGRES_URL) {
+    throw new Error('SUPABASE_POSTGRES_URL is not defined');
   }
 
-  const connection = postgres(process.env.POSTGRES_URL, { max: 1 });
+  const connection = postgres(process.env.SUPABASE_POSTGRES_URL, { max: 1 });
   const db = drizzle(connection);
 
   console.log('⏳ Running migrations...');
diff --git a/lib/db/queries.ts b/lib/db/queries.ts
index 2f8b2b2..adc085e 100644
--- a/lib/db/queries.ts
+++ b/lib/db/queries.ts
@@ -38,8 +38,11 @@ import { ChatSDKError } from '../errors';
 // use the Drizzle adapter for Auth.js / NextAuth
 // https://authjs.dev/reference/adapter/drizzle
 
+// const client = postgres(process.env.POSTGRES_URL!);
+
+// 使用 Supabase 的 PostgreSQL
 // biome-ignore lint: Forbidden non-null assertion.
-const client = postgres(process.env.POSTGRES_URL!);
+const client = postgres(process.env.SUPABASE_POSTGRES_URL!, { prepare: false });
 const db = drizzle(client);
 
 export async function getUser(email: string): Promise<Array<User>> {