Yes. The project data and README show that React uses the MIT License, which generally fits commercial integration, internal modification, and secondary use with a relatively low licensing barrier.

• The project data explicitly lists “MIT License.”
• The README’s License section repeats, “React is MIT licensed,” making the licensing information directly verifiable in the repository.
• React is positioned as a library for web and native user interfaces, so it can serve as a product dependency without requiring a particular backend or deployment architecture.
• License fit does not complete all compliance work; the README does not specify which copyright, license text, or third-party notices the company must retain.

Yes, because the README explicitly supports using a small or large amount of React in an existing project without requiring a full rewrite or a prescribed technology stack.

• “React has been designed for gradual adoption from the start,” with an “Add React to an Existing Project” path.
• React makes no assumptions about the rest of the stack, so existing JavaScript pages can remain while new features use components and JSX.
• Components can encapsulate their own state and be composed into a larger interface, which fits a bounded interactive module.
• React only covers the user-interface layer; routing, data fetching, and build tooling still belong to the existing project or other tools.

Yes, because the README defines React as a JavaScript library for building user interfaces rather than a framework that dictates a complete application architecture.

• The README says React makes no assumptions about the rest of the technology stack, so it does not prescribe routing, backend, or data-fetching implementations.
• JSX provides HTML-like interface syntax, but it is not required to use React, allowing the team to choose according to its toolchain.
• Components can receive props, manage their own state, and be composed, covering UI structure and interaction.
• The tradeoff is that a new application still needs choices for routing, data loading, forms, testing, build, and deployment; “Create a New React App” points to a JavaScript toolchain but does not define a complete architecture.

Yes for reusing the development model, but not for assuming that web components can be reused unchanged across platforms. The README positions React as a library for web and native user interfaces and explicitly mentions React Native for mobile apps.

• “Learn Once, Write Anywhere” indicates that components, props, state, and composition can transfer across hosts.
• The README explicitly says React can “power mobile apps using React Native.”
• React does not bind the rest of the technology stack, so web and React Native can choose platform-specific navigation, styling, and build tools.
• However, platform controls, the DOM, navigation, and styling differ; the reusable boundary is usually the programming model and some logic, not every rendering component.

Yes, especially when the goal is to split a complex interface into composable units and reduce manual DOM synchronization. React’s declarative and component-based model directly matches that constraint.

• The README says developers design simple views for each application state, while React updates the right components when data changes, reducing individual DOM operations.
• “Build encapsulated components that manage their own state” supports encapsulating interaction logic and local state.
• Components can be composed into complex UIs, which fits decomposition by feature and responsibility in a large application.
• React does not automatically solve every performance problem; state placement, component boundaries, and broad updates still depend on application design.

It depends: React supports server rendering with Node, but the README does not include a complete SSR application framework, routing system, or data-loading solution.

• The README explicitly states, “React can also render on the server using Node,” so the core rendering model fits a Node server-rendering requirement.
• Declarative views describe the interface from application state, and component logic is written in JavaScript, enabling a shared UI programming model.
• React makes no assumptions about the rest of the stack, allowing the team to choose its own routing, data-fetching, and deployment tools.
• However, server components, streaming, client hydration, and cache boundaries are not promised by this README, so React Core alone does not confirm a complete SSR solution.