
GatsbyJS is a free and open-source static site generator based on React. It uses a modern development stack including Webpack, GraphQL, and modern JavaScript and CSS frameworks. It also provides a rich set of plugins, starters, and themes.
Apollo is an open-source platform for building GraphQL APIs that connects with any data source. It provides a powerful set of tools and features for developers, including client and server-side caching, real-time data synchronization, and a seamless integration with popular frontend frameworks.
ESLint is a linter for JavaScript that analyzes code to detect and report on potential problems and errors, as well as enforce consistent code style and best practices, helping developers to write cleaner, more maintainable code.