Server capacity & resources

### Question (Not an Issue)

Hi team,

I have a question rather than a issue. Please bear with me as I have no knowledge of vosk internals.
So, I am hosting a docker instance of `vosk-server`. My primary use case is to utilize it in a conferencing system as transcriber. It works fine with my initial testing with few users but some clarity on following is still required before I confidently release:

1. Which resource is most important for vosk-server CPU, RAM or GPU etc.?
2. How many instances are enough to handle 1000 concurrent sessions?
3. Do we have a pointer if such info already exists.?

I am only transcribing English for now, no other language, if that matter for my case.

Looking forward to any help.

Thanks