I had to work on writing a simulator in Java for the SSEM/Manchester Baby as part of my University studies back in the 2000s, it was a fun task, nice to read more about it.
It is pretty typical these days for services in a distributed architecture to not depend on local state whatsoever. In fact, in k8s there is no way to "properly reboot" a pod. The equivalent would be to replace the pod with a new one.
So, in my current role (Go) I generate part of the code for new APIs that I am implementing, from OpenAPI specs. I just write those JSON specs manually in my IDE - The JetBrains tools (not sure if it's a plugin?) have a real-time preview you can have up side by side, which is good enough, with the openapi standard open on the other monitor.
While in an old role we had a legacy (Java) system which was a bit of a pain for others to integrate with, so we did the reverse - With a little bit of work we had an endpoint serving up a Swagger UI with autogenerated API docs (based on our comments/annotations) for people to read, for all those old existing APIs.
I mean, the .su TLD which was for the USSR, still exists, and still taking registrations, so I don't think a region stopping existing as far as ISO country codes are concerned, is always going to be fatal - Mauritius I imagine could petition ICANN to keep it alive (and make some revenue from it)
