Nub vs Rush

Nub is a free, open-source Rust toolkit for running TypeScript, JSX and JavaScript with the stock Node binary. It executes modern syntax, supports tsconfig.json, environment files and data-file imports, and does not require a separate build step. Nub loads .env files, watches entrypoints and imported files, and can provision project-pinned Node versions from .node-version, .nvmrc or engines and devEngines. Its script runner handles lifecycle hooks, npm_* variables, forwarded arguments and workspace filters. The installer works with npm, pnpm and Bun lockfiles; Yarn lockfiles are read-only. Supply-chain controls deny dependency build scripts by default, check OSV advisories and delay releases newer than 24 hours, with nub approve-builds for review. Nub includes nubx, GitHub Actions, a container image and deployment guides. It supports Linux, macOS and Windows on listed x64 and arm64 architectures.

Rush is a monorepo manager for JavaScript developers who build and publish many packages from a shared Git repository. It can install dependencies, link projects, build, generate change logs, update versions, and publish packages to an npm registry. Build modes include parallel, subset, incremental, and distributed builds. Rush puts dependencies in a common folder and uses symlinks to recreate a node_modules folder for each project. Its installation algorithm supports PNPM, NPM, and Yarn. For releases, it gathers change files and updates package versions and changelogs before publishing. Project folders remain self-contained: they can be built without Rush or moved to a separate repository without code changes. Rush runs on Linux, macOS, and Windows; its getting-started demo lists NodeJS as the only prerequisite. Plugins can share configuration and extend features, but the plugin framework is marked experimental. Microsoft does not provide official support; community help is directed to GitHub issues and Rush Stack Zulip. Rush is free and open source.