diff --git a/script/build.ts b/script/build.ts
index 0b4eb60..9aba467 100644
--- a/script/build.ts
+++ b/script/build.ts
@@ -54,7 +54,7 @@ async function buildAll() {
       "process.env.NODE_ENV": '"production"',
     },
     minify: true,
-    external: externals,
+    external: [...externals, "better-sqlite3", "pg", "drizzle-orm/better-sqlite3", "drizzle-orm/node-postgres"],
     logLevel: "info",
   });
 }
diff --git a/server/db.ts b/server/db.ts
index c640111..ed4358a 100644
--- a/server/db.ts
+++ b/server/db.ts
@@ -1,32 +1,31 @@
-import { drizzle } from "drizzle-orm/node-postgres";
+import { drizzle } from "drizzle-orm/better-sqlite3";
 import { eq } from "drizzle-orm";
 import { users, User, NewUser } from "../shared/schema";
-import { Pool } from "pg";
+import Database from "better-sqlite3";
+import path from "node:path";
+import fs from "node:fs";
 
-// Production PostgreSQL connection
-const pool = new Pool({
-  host: process.env.DB_HOST || "10.136.95.120",
-  port: parseInt(process.env.DB_PORT || "5432"),
-  user: process.env.DB_USER || "gn_admin",
-  password: process.env.DB_PASSWORD || "",
-  database: process.env.DB_NAME || "gammanexus",
-  ssl: (process.env.DB_SSL === "true" && process.env.NODE_ENV === "production") ? { rejectUnauthorized: false } : false,
-  max: 20,
-  idleTimeoutMillis: 30000,
-  connectionTimeoutMillis: 5000,
-});
+// Use SQLite for production (PostgreSQL migration later)
+const dbPath = path.resolve(__dirname || ".", "..", "data.db");
 
-export const db = drizzle(pool);
+// Ensure data directory exists
+const dbDir = path.dirname(dbPath);
+if (!fs.existsSync(dbDir)) {
+  fs.mkdirSync(dbDir, { recursive: true });
+}
+
+const sqlite = new Database(dbPath);
+export const db = drizzle(sqlite);
 
 // Initialize users table if it doesn't exist (called at startup)
 export async function initDb(): Promise<void> {
-  await db.execute(`
+  sqlite.exec(`
     CREATE TABLE IF NOT EXISTS users (
-      id SERIAL PRIMARY KEY,
+      id INTEGER PRIMARY KEY AUTOINCREMENT,
       name TEXT NOT NULL,
       email TEXT NOT NULL UNIQUE,
       password_hash TEXT NOT NULL,
-      created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+      created_at DATETIME DEFAULT CURRENT_TIMESTAMP
     )
   `);
 }
diff --git a/server/static.ts b/server/static.ts
index b97fbfe..bcc33b8 100644
--- a/server/static.ts
+++ b/server/static.ts
@@ -2,13 +2,20 @@ import express from 'express';
 import type { Express } from 'express';
 import fs from "node:fs";
 import path from "node:path";
-import { fileURLToPath } from "node:url";
-
-const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
 export function serveStatic(app: Express) {
-  const distPath = path.resolve(__dirname, "..", "dist", "public");
+  // In production, dist/public is at the same level as index.cjs
+  const distPath = path.resolve(__dirname, "..", "public");
   if (!fs.existsSync(distPath)) {
+    // Fallback: check cwd
+    const cwdPath = path.resolve(process.cwd(), "dist", "public");
+    if (fs.existsSync(cwdPath)) {
+      app.use(express.static(cwdPath));
+      app.use("/{*path}", (_req, res) => {
+        res.sendFile(path.resolve(cwdPath, "index.html"));
+      });
+      return;
+    }
     throw new Error(
       `Could not find the build directory: ${distPath}, make sure to build the client first`,
     );