core/tsconfig.rolldown.json

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "paths": {
      "@vue/compat": ["./packages/vue-compat/src"],
      "@vue/*": ["./packages/*/src"],
      "vue": ["./packages/vue/src/index.ts"],
      "*": ["./*"]
    }
  }
}