hi, can someone help me how I can configure GrowthBook in Next Js (server side) properly because I am following this documentation https://docs.growthbook.io/guide/nextjs-and-growthbook#server-components but the problem is that like this doesn’t work, while if I set an ID like this it works.

.setAttributes({
  id: "any id here",
});

const growthbook = new GrowthBook({
  apiHost: "...",
  clientKey: "...",
  enableDevMode: true,
  trackingCallback: (experiment, result) => {
    // TODO: Use your real analytics tracking system
    console.log("Viewed Experiment", {
      experimentId: experiment.key,
      variationId: result.key,
    });
  },
});

now this it makes problems because user can see variation 1 and variation 0 if he refreshes or comes back to the same page, I think this is happening because every time I am generating unique ID and I set that id in GrowthBook, for this reason I get this message in GrowthBook

That's right - you need some persistent identifier