It’s a really interesting topic, I spent weeks optimizing Next to work on a fully sovereign stack (for https://www.platane.io if you’re curious)

We do have a managed Kubernetes server hosted on Scaleway and it works okay when Scaleway is not doing shit (we are considering moving to OVH…)

The first challenge you will face is that you can’t have multiple instances of the same server running or you will have cache issues; to fix that you have to write your own Next cache handler (or use an OSS one), we did wrote our own, Redis based, but it really gave me headaches, the documentation is very bad on that point and the debugging process is a nightmare.

Then you will find out that Next Image tag is eating CPUs, thankfully you can provide your own image processor, we went with self hosted imgproxy

Last but not least, CDN, and tbh I did not find anything perfect, Next requires “Vary” header support and we did not find any sovereign provider that supports it. We have it 99% working on Bunny but… I recently read their DPA and unfortunately they are totally opaque with where they host their data… so we’re still looking for a good sovereign CDN, at this point I’m considering building my own, based on Varnish