What's the process to integrate rspack as a preprocessor to karma?

[LoyalPotato]

Hello,

Karma has a pre-processor that uses webpack (repo).

Setting rspack as a preprocessor:

//...
preprocessors: {
      // add webpack as preprocessor
      'test/**/*.test.js': [ 'rspack' ]
    },
//...

(naturally) doesn't work:

26 07 2024 16:18:49.446:ERROR [preprocess]: Can not load "rspack", it is not registered!

Is there any way that this can be re-configured or is there another runner that would be supported?