renovate.json5

{
  "$schema": "https://docs.renovatebot.com/renovate-schema.json",

  "packageRules": [
    {
      // JS packages we want to treat as apps
      "matchCategories": ["js"],
      "matchPackageNames": [
        // scratch-gui is kind of a lib (wrapped by www, desktop, etc.) but kind of an app (esp. standalone)
        // treating it as an app is slightly safer, so let's do that
        "@scratch/scratch-gui"
      ],
      "extends": [
        "github>scratchfoundation/scratch-renovate-config:js-app"
      ]
    },
    {
      // JS packages we want to treat as libs (should cover all JS except apps handled above)
      "matchCategories": ["js"],
      "matchPackageNames": [
        "!@scratch/scratch-gui"
      ],
      "extends": [
        "github>scratchfoundation/scratch-renovate-config:js-lib"
      ]
    },
    {
      // Non-JS updates use default Scratch config
      "matchCategories": ["!js"],
      "extends": [
        "github>scratchfoundation/scratch-renovate-config"
      ]
    }
  ]
}