How can I avoid nodeIntegration for preload in ESM project?

[FunctionDJ]

I have a project with "type": "module", in package.json and a small preload script with this being the transpiled output by electron-vite:

import { exposeElectronTRPC } from "electron-trpc/main";
exposeElectronTRPC();

Because of this ESM import, I currently require nodeIntegration on the window.
If I could bundle the preload script, I could disable Node integration, but how?