Rollup bundling test

package.json

{
  "name": "rollup-test",
  "version": "1.0.0",
  "description": "",
  "types": "dist/typings/index.d.ts",
  "type": "module",
  "exports": {
    ".": {
      "import": "./dist/esm/index.min.mjs",
      "require": "./dist/cjs/index.min.cjs",
      "types": "./dist/typings/index.d.ts"
    }
  },
  "main": "./dist/cjs/index.min.cjs",
  "module": "./dist/esm/index.min.mjs",
  "source": "./src/index.ts",
  "files": [
    "dist/",
    "src/"
  ],
  "scripts": {
    "build": "rimraf dist && rollup --config --sourcemap"
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "@rollup/plugin-commonjs": "^25.0.0",
    "@rollup/plugin-node-resolve": "15.0.2",
    "@rollup/plugin-terser": "^0.4.3",
    "@wessberg/rollup-plugin-ts": "2.0.4",
    "rimraf": "^5.0.1",
    "rollup": "^3.23.0",
    "rollup-plugin-dts": "^5.3.0",
    "rollup-plugin-typescript2": "^0.34.1",
    "typescript": "^5.0.4"
  }
}

rollup.config.js

import resolve from '@rollup/plugin-node-resolve';
import terser from '@rollup/plugin-terser';
import typescript from 'rollup-plugin-typescript2';

import pkg from './package.json'  assert { type: "json" };

const minifiedOutputs = [
  {
    file: pkg.exports['.'].import,
    format: 'esm',
    plugins: [terser()],
  },
  {
    file: pkg.exports['.'].require,
    format: 'cjs',
    plugins: [terser()],
  },
];

const unminifiedOutputs = minifiedOutputs.map(({ file, ...rest }) => ({
  ...rest,
  file: file.replace('.min.', '.'),
  plugins: [],
}));

const commonPlugins = [
  typescript({
    clean: true,
      useTsconfigDeclarationDir: true,
      tsconfigOverride: {
        noEmit: false,
        sourceMap: true,
        compilerOptions: {
          lib: ['dom', 'es6']
        }
      }
  })
];

export default [
  {
    input: './src/index.ts',
    output: [...unminifiedOutputs, ...minifiedOutputs],
    plugins: [
      ...commonPlugins,
      resolve(),
    ],
    external: [/^@babel\/runtime\//],
  },
];

tsconfig.json

{
    "compilerOptions": {
      "target": "ES2017",
      "allowSyntheticDefaultImports": true,
      "esModuleInterop": true,
      "sourceMap": true,
      "declaration": true,
      "declarationDir": "./dist/typings",
      "moduleResolution": "node",
      "noImplicitAny": true,
      "downlevelIteration": true
    }
  }