Improve bundle size

Steps to reproduce

I'm building a project with Next.js, tRPC, Drizzle and Neon as a Postgres database (you can find the source code here: https://github.com/DavidRouyer/customer-service)

The library is used in the following way:

import { neon } from '@neondatabase/serverless';
import { drizzle } from 'drizzle-orm/neon-http';

import * as auth from './schema/auth';
import * as contact from './schema/contact';
import * as message from './schema/message';
import * as ticket from './schema/ticket';

export const schema = { ...auth, ...contact, ...message, ...ticket };

export { pgTable as tableCreator } from './schema/_table';

export * from 'drizzle-orm';

export const db = drizzle(neon(process.env.DATABASE_URL!), { schema });

I'm having an issue when deploying my application on Vercel, I'm getting the following message: The Edge Function "index" size is 1.04 MB and your plan size limit is 1 MB.

I've installed @next/bundle-analyzer to investigate the problem with the bundle size on the edge part:

As you can see, @neondatabase/serverless is bundled multiple times and represents a large part of my bundle:

Expected result

Have a smaller bundle size (or maybe a specific entry for edge only?)

Actual result

The bundle size is too big

Environment

Vercel, Edge Runtime

Logs, links

Start by reproducing the Vercel Edge Runtime bundle from the linked customer-service project and inspect the @neondatabase/serverless entries with @next/bundle-analyzer. Trace why the package is bundled multiple times, then verify that the Edge Function is below the reported 1 MB limit or that an edge-specific entry point reduces its size.