rollup.config.js

import resolve from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import typescript from '@rollup/plugin-typescript';
import packageJson from './package.json' assert { type: 'json' };

export default [
  {
    input: 'src/index.ts',
    output: [
      {
        file: packageJson.main,
        format: 'cjs',
        exports: 'named',
        sourcemap: true
      },
      {
        file: packageJson.module,
        format: 'esm',
        exports: 'named',
        sourcemap: true
      }
    ],
    plugins: [
      resolve(),
      commonjs(),
      typescript({
        exclude: ['**/*.test.ts', '**/*.spec.ts', '**/__tests__/**']
      })
    ],
    external: [
      ...Object.keys(packageJson.devDependencies || {}),
      ...Object.keys(packageJson.peerDependencies || {})
    ]
  }
];