webiny-js

Open-source, self-hosted CMS platform on AWS serverless (Lambda, DynamoDB, S3). TypeScript framework with multi-tenancy, lifecycle hooks, GraphQL API, and AI-assisted development via MCP server. Built for developers at large organizations. Maintained by webiny on GitHub, where it has earned 8,032 stars from the community.

It's actively developed around graphql, react, serverless, and is a solid reference for anyone building with these tools.