Can apollo router can be installed without js dependencies?

[tcpdcp22]

Hello.

1. Сan i just set up a apollo router without installing apollo server(and JS dependecies) and use it as a single entry point for my graphql services(schemes) in rust project(only with rust eco-system and apollo router on rust, without using other languages)?
2. I saw in some examples a super-graph in the '.graphql' format - why is it needed and should I describe it manually or can I generate it automatically based on my schemes using some "codegen"?
3. Should I describe plugins if I would like to check authorization tokens in the router? If so, where can I read the documentation on plugins and integration with the graphql services growth code?