diff --git a/frontends/nextjs/src/lib/nerd-mode-ide/build-package-template.ts b/frontends/nextjs/src/lib/nerd-mode-ide/build-package-template.ts
new file mode 100644
index 000000000..446229d5f
--- /dev/null
+++ b/frontends/nextjs/src/lib/nerd-mode-ide/build-package-template.ts
@@ -0,0 +1,150 @@
+import { appendExportPath } from './append-export-path'
+import { createFileNode } from './create-file-node'
+import { createFolderNode } from './create-folder-node'
+import type { PackageTemplate, PackageTemplateConfig } from './types'
+
+const buildManifestJson = (config: PackageTemplateConfig): string => {
+  const manifest = {
+    scripts: config.luaScripts.map((script) => ({
+      file: script.fileName,
+      name: script.fileName.replace(/\.lua$/, ''),
+      category: 'package',
+      description: script.description,
+    })),
+  }
+  return JSON.stringify(manifest, null, 2)
+}
+
+const buildMetadataJson = (config: PackageTemplateConfig): string => {
+  const componentIds = config.components
+    .map((component) => component.id)
+    .filter((id): id is string => typeof id === 'string')
+
+  const metadata = {
+    packageId: config.packageId,
+    name: config.name,
+    version: config.version,
+    description: config.summary,
+    author: config.author,
+    category: config.category,
+    dependencies: [],
+    exports: {
+      components: componentIds,
+    },
+  }
+
+  return JSON.stringify(metadata, null, 2)
+}
+
+const buildCliReadme = (config: PackageTemplateConfig): string => {
+  return [
+    `# ${config.name} CLI`,
+    '',
+    'This is a starter CLI surface for powering package-aware workflows.',
+    'You can wire it to the exported zip and automate deployment steps.',
+  ].join('\n')
+}
+
+const buildCliCpp = (): string => {
+  return [
+    '#include <iostream>',
+    '',
+    'int main(int argc, char** argv) {',
+    '  std::cout << "MetaBuilder CLI bootstrap" << std::endl;',
+    '  std::cout << "Arguments: " << argc - 1 << std::endl;',
+    '  return 0;',
+    '}',
+  ].join('\n')
+}
+
+export function buildPackageTemplate(config: PackageTemplateConfig): PackageTemplate {
+  const manifestJson = buildManifestJson(config)
+  const metadataJson = buildMetadataJson(config)
+  const componentsJson = JSON.stringify(config.components, null, 2)
+  const examplesJson = JSON.stringify(config.examples, null, 2)
+
+  const luaFolder = createFolderNode({
+    name: 'Lua',
+    exportPath: 'seed/scripts',
+    expanded: true,
+    children: [
+      createFileNode({
+        name: 'manifest.json',
+        content: manifestJson,
+        exportPath: 'seed/scripts/manifest.json',
+      }),
+      ...config.luaScripts.map((script) =>
+        createFileNode({
+          name: script.fileName,
+          content: script.code,
+          exportPath: appendExportPath('seed/scripts', script.fileName),
+        })
+      ),
+    ],
+  })
+
+  const metadataFolder = createFolderNode({
+    name: 'metadata',
+    exportPath: 'seed',
+    expanded: true,
+    children: [
+      createFileNode({
+        name: 'metadata.json',
+        content: metadataJson,
+        exportPath: 'seed/metadata.json',
+      }),
+      createFileNode({
+        name: 'components.json',
+        content: componentsJson,
+        exportPath: 'seed/components.json',
+      }),
+    ],
+  })
+
+  const cliFolder = createFolderNode({
+    name: 'cli',
+    exportPath: 'static_content/cli',
+    expanded: true,
+    children: [
+      createFileNode({
+        name: 'README.md',
+        content: buildCliReadme(config),
+        exportPath: 'static_content/cli/README.md',
+      }),
+      createFileNode({
+        name: 'main.cpp',
+        content: buildCliCpp(),
+        exportPath: 'static_content/cli/main.cpp',
+      }),
+    ],
+  })
+
+  const staticFolder = createFolderNode({
+    name: 'static',
+    exportPath: 'static_content',
+    expanded: true,
+    children: [
+      createFileNode({
+        name: 'examples.json',
+        content: examplesJson,
+        exportPath: 'static_content/examples.json',
+      }),
+      cliFolder,
+    ],
+  })
+
+  const root = createFolderNode({
+    name: config.rootName,
+    expanded: true,
+    children: [metadataFolder, luaFolder, staticFolder],
+  })
+
+  return {
+    id: config.id,
+    name: config.name,
+    description: config.description,
+    rootName: config.rootName,
+    tree: [root],
+    tags: config.tags,
+  }
+}