Using drizzle postgres with trpc in Next.js app

import { publicProcedure, router } from "../trpc";
import { z } from "zod";

import { drizzle } from "drizzle-orm/node-postgres";

// If I comment out this function, the error goes away.
export const createDbClient = () => {
  return drizzle(process.env.DB_URL!);
};

const formSchema = z.object({
  name: z.string().min(1, "Must provide a name."),
  email: z.string().email(),
});

export const formRouter = router({
  test: publicProcedure.query(() => {
    return `test`;
  }),
  submit: publicProcedure.input(formSchema).mutation(({ input }) => {
    // const client = createDbClient();

    return `received form values`;
  }),
});

export type FormRouter = typeof formRouter;