Option Dependencies

export default defineConfig({
  deps: {
    neverBundle: ['react', /^@myorg\//],
    alwaysBundle: ['some-package'],
    onlyBundle: ['cac', 'bumpp'],
    skipNodeModulesBundle: true,
  },
})

export default defineConfig({
  entry: ['src/index.ts'],
  deps: {
    neverBundle: [
      'react',              // Single package
      'react-dom',
      /^@myorg\//,         // Regex pattern (all @myorg/* packages)
      /^lodash/,           // All lodash packages
    ],
  },
})

export default defineConfig({
  entry: ['src/index.ts'],
  deps: {
    alwaysBundle: [
      'some-package',      // Bundle this even if in dependencies
      'vendor-lib',
    ],
  },
})

export default defineConfig({
  entry: ['src/index.ts'],
  deps: {
    onlyBundle: [
      'cac',               // Allow bundling cac
      'bumpp',             // Allow bundling bumpp
      /^my-utils/,         // Regex patterns supported
    ],
  },
})

export default defineConfig({
  entry: ['src/index.ts'],
  deps: {
    skipNodeModulesBundle: true,
  },
})

export default defineConfig({
  entry: ['src/index.tsx'],
  format: ['esm', 'cjs'],
  deps: {
    neverBundle: [
      'react',
      'react-dom',
      /^react\//,          // react/jsx-runtime, etc.
    ],
  },
  dts: true,
})

export default defineConfig({
  entry: ['src/index.ts'],
  format: ['esm', 'cjs'],
  deps: {
    alwaysBundle: ['lodash-es'],
  },
  dts: true,
})

export default defineConfig({
  entry: ['src/index.ts'],
  format: ['esm', 'cjs'],
  deps: {
    neverBundle: [
      /^@mycompany\//,     // Don't bundle other workspace packages
    ],
  },
  dts: true,
})

export default defineConfig({
  entry: ['src/cli.ts'],
  format: ['esm'],
  platform: 'node',
  deps: {
    alwaysBundle: [/.*/],
  },
  shims: true,
})

export default defineConfig({
  entry: ['src/index.ts'],
  format: ['esm', 'cjs'],
  deps: {
    neverBundle: [
      'vue',
      '@vue/runtime-core',
      '@vue/reactivity',
    ],
  },
  dts: true,
})

export default defineConfig({
  entry: ['src/index.ts'],
  dts: {
    resolver: 'tsc',     // Use TypeScript resolver instead of Oxc
  },
})

tsdown --deps.never-bundle react --deps.never-bundle react-dom
tsdown --deps.never-bundle '/^@myorg\/.*/'

tsdown --deps.skip-node-modules-bundle

// Don't bundle framework
export default defineConfig({
  deps: {
    neverBundle: ['vue', 'react', 'solid-js', 'svelte'],
  },
})

// Bundle everything
export default defineConfig({
  deps: {
    alwaysBundle: [/.*/],
  },
})

// Bundle only specific utils
export default defineConfig({
  deps: {
    neverBundle: [/.*/],        // External by default
    alwaysBundle: ['tiny-utils'], // Except this one
  },
})

// External workspace packages, bundle utilities
export default defineConfig({
  deps: {
    neverBundle: [
      /^@workspace\//,     // Other workspace packages
      'react',
      'react-dom',
    ],
    alwaysBundle: [
      'lodash-es',         // Bundle utility libraries
    ],
  },
})

{
  "dependencies": {
    "should-be-external": "^1.0.0"
  }
}

export default defineConfig({
  deps: {
    neverBundle: ['should-be-external'],
  },
})

{
  "dependencies": {
    "needed-package": "^1.0.0"
  }
}

export default defineConfig({
  deps: {
    alwaysBundle: ['needed-package'],
  },
})

export default defineConfig({
  dts: {
    resolver: 'tsc',
  },
})