docs/packages/next-docs/tsup.config.ts

import { defineConfig } from 'tsup'
import tsconfig from './tsconfig.json'

export default defineConfig({
  entry: [
    'src/{server,breadcrumb,sidebar,toc,search,link,contentlayer,middleware,mdx-plugins}/index.{ts,tsx}',
    'src/contentlayer/configuration.ts'
  ],
  external: ['contentlayer'],
  format: 'esm',
  dts: true,
  target: tsconfig.compilerOptions.target as 'es2016'
})