core/tsconfig.build.json

{
  "extends": "./tsconfig.json",
  "compilerOptions": {
    "declaration": true,
    "emitDeclarationOnly": true
  },
  "exclude": [
    "packages/*/__tests__",
    "packages/runtime-test",
    "packages/template-explorer",
    "packages/sfc-playground",
    "packages/dts-test"
  ]
}