# @preconstruct/cli > Dev and build your code painlessly in monorepos Latest version **2.9.0** (published 2026-08-18) · MIT license · 0 weekly downloads ## Install ```sh npm install @preconstruct/cli pnpm add @preconstruct/cli yarn add @preconstruct/cli bun add @preconstruct/cli ``` Provides the command `preconstruct`. ## Health **Score 65/100 (B)** — status: active. Positive: esm support; no vulnerabilities; has provenance; recently updated; high maintenance score. Warnings: low downloads; no types. ## Facts | | | |---|---| | Version | 2.9.0 | | Published | 2026-08-18 | | First published | 2019-11-06 | | Weekly downloads | 0 | | License | MIT | | TypeScript types | none | | Module format | ESM + CommonJS | | Dependencies | 36 | | Unpacked size | 279.9 KB | | Known vulnerabilities | 0 (+1 in 1 direct dependencies) | | Install scripts | no | | Provenance | attested (GitHub Actions) | | GitHub stars | 1190 | | Maintainers | emmatown | ## Links - npm: https://www.npmjs.com/package/@preconstruct/cli - Repository: https://github.com/preconstruct/preconstruct/tree/main/packages/cli - npm.io page: https://npm.io/package/@preconstruct/cli ## Dependencies (36) - [ms](https://npm.io/package/ms.md) ^2.1.2 - [zod](https://npm.io/package/zod.md) ^3.21.4 - [chalk](https://npm.io/package/chalk.md) ^4.1.0 - [rollup](https://npm.io/package/rollup.md) ^2.79.1 - [semver](https://npm.io/package/semver.md) ^7.3.4 - [terser](https://npm.io/package/terser.md) ^5.16.8 - [ci-info](https://npm.io/package/ci-info.md) ^3.8.0 - [p-limit](https://npm.io/package/p-limit.md) ^3.0.2 - [enquirer](https://npm.io/package/enquirer.md) ^2.3.6 - [fs-extra](https://npm.io/package/fs-extra.md) ^9.0.1 - [fast-glob](https://npm.io/package/fast-glob.md) ^3.2.4 - [quick-lru](https://npm.io/package/quick-lru.md) ^5.1.1 - [dataloader](https://npm.io/package/dataloader.md) ^2.0.0 - [parse-glob](https://npm.io/package/parse-glob.md) ^3.0.4 - [parse-json](https://npm.io/package/parse-json.md) ^5.1.0 - [@babel/core](https://npm.io/package/@babel/core.md) ^7.7.7 - [jest-worker](https://npm.io/package/jest-worker.md) ^26.3.0 - [is-reference](https://npm.io/package/is-reference.md) ^1.2.1 - [magic-string](https://npm.io/package/magic-string.md) ^0.30.0 - [npm-packlist](https://npm.io/package/npm-packlist.md) ^2.1.2 - [resolve-from](https://npm.io/package/resolve-from.md) ^5.0.0 - [detect-indent](https://npm.io/package/detect-indent.md) ^6.0.0 - [estree-walker](https://npm.io/package/estree-walker.md) ^2.0.1 - [@babel/runtime](https://npm.io/package/@babel/runtime.md) ^7.7.7 - [normalize-path](https://npm.io/package/normalize-path.md) ^3.0.0 - [builtin-modules](https://npm.io/package/builtin-modules.md) ^3.1.0 - [fast-deep-equal](https://npm.io/package/fast-deep-equal.md) ^2.0.1 - [v8-compile-cache](https://npm.io/package/v8-compile-cache.md) ^2.1.1 - [@babel/code-frame](https://npm.io/package/@babel/code-frame.md) ^7.5.5 - [@preconstruct/hook](https://npm.io/package/@preconstruct/hook.md) ^0.4.0 - [@rollup/plugin-json](https://npm.io/package/@rollup/plugin-json.md) ^4.1.0 - [@rollup/plugin-alias](https://npm.io/package/@rollup/plugin-alias.md) ^3.1.1 - [@rollup/plugin-replace](https://npm.io/package/@rollup/plugin-replace.md) ^2.4.1 - [@rollup/plugin-commonjs](https://npm.io/package/@rollup/plugin-commonjs.md) ^15.0.0 - [@rollup/plugin-node-resolve](https://npm.io/package/@rollup/plugin-node-resolve.md) ^11.2.1 - [@babel/helper-module-imports](https://npm.io/package/@babel/helper-module-imports.md) ^7.10.4 ## Recent versions - 2.9.0 (latest) — 2026-08-18 - 0.0.0-test-20241108011831 (test) — 2024-11-08 - 1.2.2 (one) — 2021-02-24 - 2.8.13 — 2026-05-06 - 2.8.12 — 2025-03-27 - 2.8.11 — 2025-02-25 - 2.8.10 — 2024-11-08 - 0.0.0-test-20241107073624 — 2024-11-07 - 2.8.9 — 2024-10-10 - 2.8.8 — 2024-10-01 - 2.8.7 — 2024-07-08 - 0.0.0-test-20240708054446 — 2024-07-08 - 2.8.6 — 2024-07-05 - 2.8.5 — 2024-07-02 - 2.8.4 — 2024-05-02 - … 85 more at https://npm.io/package/@preconstruct/cli/versions ## README # Preconstruct 🎁 > Dev and build your code painlessly in monorepos ## Key Features - In dev mode, your code behaves the same as it will in production, including locally linked in monorepos - Add multiple entrypoints to your packages for publishing - CLI helps walk you through set-up and making changes to your configs - Works with different kinds of JS monorepos - Also works for single package repos! - Builds your code with rollup ## Getting Started Assuming you already have a source file at src/index.js (or src/index.ts) or you're using pnpm workspaces and have packages with src/index.js (or src/index.ts), you can setup Preconstruct like this. ```bash pnpm add --save-dev @preconstruct/cli pnpm preconstruct init ``` If you're in a monorepo, you should also run `pnpm preconstruct dev` and add it to a postinstall script(`"postinstall": "preconstruct dev"`) that runs preconstruct dev so that you can import your code without having to rebuild your project every time in changes. ## Publishing packages Before you publish packages to npm, run `preconstruct build`. reconstruct will use your Babel config and build flat bundles so make sure to [configure Babel](/guides/configuring-babel) with the transforms you want. > We strongly recomment making a single script in your package.json that runs both build and publish, to stop broken publishes, such as `"release": "preconstruct build && pnpm publish:packages`. If you're in a single-package repo, you could also run `preconstruct build` in a `prepare` or `prepublishOnly` script. ## Further Guides There are a number of tasks that become easier with preconstruct that lie slightly outside the main workflow. Check out the following guides for setting these up. - [A more detailed account of getting set up](https://preconstruct.tools/tutorials) - [Setting up a second entrypoint](https://preconstruct.tools/guides/adding-a-second-entrypoint) - [CLI command documentation](https://preconstruct.tools/commands) - [Other configuration](https://preconstruct.tools/configuration) # See the docs at [preconstruct.tools](https://preconstruct.tools) # Thanks/Inspiration - [microbundle](https://github.com/developit/microbundle) was a huge inspiration for this! ❤️ - [rollup](https://rollupjs.org) - rollup has done the really hard stuff that makes preconstruct possible! - [bolt](https://github.com/boltpkg/bolt) - lots of utils and things in this project were inspired by things in bolt - [Kye Hohenberger](https://github.com/tkh44) for thinking of the name preconstruct - Too many awesome people to name at [Thinkmill](https://thinkmill.com.au) who have given so much great feedback to make Preconstruct better and Thinkmill for sponsoring the development of Preconstruct 💝 - all the people who wrote all the dependencies for this project! --- _Source: https://npm.io/package/@preconstruct/cli · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._