svrjs-nextjs-website/sanity.cli.ts

import { loadEnvConfig } from "@next/env";
import { defineCliConfig } from "sanity/cli";

const dev = process.env.NODE_ENV !== "production";
loadEnvConfig(__dirname, dev, { info: () => null, error: console.error });

export default defineCliConfig({
  api: {
    projectId: `${process.env.NEXT_PUBLIC_SANITY_PROJECT_ID}`,
    dataset: "production"
  }
});