Is it possible to use Snowpack alongside rollup plugins like rollup-plugin-skypin?

[tropicalraisel]

In a perfect world, I'd like to use snowpack and rollup-plugin-skypin alongside each other. This way the full url wouldn't have to be pasted in the document, and the package would update alongside the CDN definition. Since snowpack uses rollup, I'd figure it's feasible.

There's the snowpack-plugin-rollup-bundle, which seems like a good option but the following attempt fails:

// Snowpack Configuration File
// See all supported options: https://www.snowpack.dev/reference/configuration
const skypin = require("rollup-plugin-skypin")

/** @type {import("snowpack").SnowpackUserConfig } */
module.exports = {
  mount: {
    /* ... */
  },
  plugins: [
    [
      "snowpack-plugin-rollup-bundle",
      {
        // emitHtmlFiles: boolean,
        // preserveSourceFiles: boolean,
  
        // equivalent to inputOptions.input from Rollup
        // entrypoints: string | string [] | { [entryName: string]: string },
  
        extendConfig: (config) => {
          // https://rollupjs.org/guide/en/#outputoptions-object
          config.outputOptions.plugins.push(skypin())
  
          // https://rollupjs.org/guide/en/#inputoptions-object
          config.inputOptions.plugins.push(skypin())

          config.plugins.push(skypin())

          console.log(config)
  
          return config
        }
      }
    ]
  ],
  packageOptions: {
    /* ... */
  },
  devOptions: {
    /* ... */
  },
  buildOptions: {
    /* ... */
  },
};

[tropicalraisel]

I figured out how to get the same effect through Snowpack itself: https://github.com/TropicalRaisel/avalanche