• Initialize a turborepo

npx create-turbo@latest

• Initialize a db package that defines a simple prisma schema

cd packages
mkdir db
cd db
bun init 
bun install prisma
bunx prisma init

• Add a model

model User {
  id              String      @id    @default(uuid())
  username        String
  password        String
}

• Create a DB locally

docker run -e POSTGRES_PASSWORD=mysecretpassword -d -p 5432:5432 postgres  

• Update the .env file with the right credentials

DATABASE_URL="postgresql://postgres:mysecretpassword@localhost:5432/postgres

• Migrate the DB, generate the client

bunx prisma migrate dev
bunx prisma generate

• Add index.ts

import { PrismaClient } from "@prisma/client";

export const prismaClient;

• Export db (update package.json)

"exports": {
	"./client": "./index.ts"
}