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Good point, it is. The question is whether we should recommend creating a plugin like so:

export default defineNuxtPlugin((nuxtApp) => {
  nuxtApp.hook('app:created', (app) => {
    app.config.idPrefix = 'foo'
  })
})

... or prefer to set it in the Nuxt config. (I don't have a strong opinion on this matter and happy to close the PR if using a hook is the preferred way.)

I'm in favor of letting users create a plugin. But our documentation may require a change if this wasn't clear enough that we can set runtime config of vue within a plugin 👀

I can see a benefit to allowing users to define the serialisable bits of the vue app config in their nuxt.config file.

could we generalise this a bit, maybe with vue.config?

@danielroe updated 👌