Deploy preview outside of Vercel, ie. Docker container?

[Tassil0]

Is it possible to deploy the preview using email build somewhere else that is not Vercel? For example a docker container. I have not been able to find out any info about this anywhere. I guess you would need to put output: standalone in the nextjs config, but there's no mention of overriding the default nextjs config in the docs anywhere.

[ayuhito]

I'd love it to use output: 'export' so it can deploy anywhere, such as Cloudflare, GitHub Pages or even an S3 bucket.

Our internal docs infrastructure only supports static files, so it's a shame we can't host this preview server on it since it's a waste to provision an entire server just for a preview that gets a tiny amount of traffic.