What does it mean the "s~" prefix in the Google Cloud project id name?

Question

There is described a need to include of the "s~" prefix to the Google Cloud project id, see answer to this question.

What does mean the "s~" prefix in front of a project id and where can I find a description of that?

Answer 1

For now it means that the app in hosted in north america. e~ means it's hosted in europe.