Feat: Add user login / logout

app/lib/db.ts

@@ -0,0 +1,13 @@
+import { PrismaClient } from '@prisma/client'
+
+const prismaClientSingleton = () => {
+  return new PrismaClient()
+}
+
+declare global { }
+
+declare const globalThis: {
+  prismaGlobal: ReturnType<typeof prismaClientSingleton>;
+} & typeof global;
+
+export const db = globalThis.prismaGlobal ?? prismaClientSingleton() // Creating a new instance of PrismaClient.