Confused about the value to pass to CLI's --config option

[kyokota-bj]

I'm considering using React Router (v7.7.1) in framework mode.
I set up a development environment following the Installation documentation.

When I ran npx react-router --help to check the help, I found that the dev and build commands support the -c(--config) option, so I tried modifying my npm scripts as follows:

"scripts": {
  "build": "react-router build -c react-router.config.ts",
  "dev": "react-router dev -c react-router.config.ts",
  "start": "react-router-serve ./build/server/index.js",
  "typecheck": "react-router typegen ./src && tsc"
},

※ This is because I want to change and move the configuration file.

When I run npm run build in this state, I get the following error:

React Router Vite plugin not found in Vite config

The help description for the --config option in dev and build commands says "Use specified config file (string)", but for routes and reveal it says "Use specified Vite config file (string)".

When I changed from -c react-router.config.ts to -c vite.config.ts, it built correctly. However, the bottom of the help also shows:

Reveal the used entry point:

    $ react-router reveal entry.client
    $ react-router reveal entry.server
    $ react-router reveal entry.client --no-typescript
    $ react-router reveal entry.server --no-typescript
    $ react-router reveal entry.server --config vite.react-router.config.ts

Should I pass react-router.config.ts or vite.config.ts to the --config option?

Additional information: I looked at the code briefly, and it seems that viteBuild() in packages/react-router-dev/vite/build.ts expects a path to vite.config.ts, but it appears that the --config value is passed directly to it.