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Mastra gives TypeScript developers one framework for model access, autonomous agents, graph-based workflows, and AI application development. It can integrate with React, Next.js, and Node or run as a standalone server, supporting a path from prototypes to deployed products through a common interface for many model providers. Most of the core uses Apache 2.0, but enterprise features under `ee/` require a commercial license for production.

Eclipse Theia is a framework for teams building their own developer tools or cloud IDEs, rather than a single fixed editor. It can be composed into browser-based or desktop applications, offers a flexible extension architecture, and supports the VS Code extension protocol. The project also documents application composition, Theia extensions, VS Code-style extensions, and desktop packaging.

Electrobun gives TypeScript developers one toolkit for creating, packaging, updating, and distributing desktop applications. Start from an npm template, use Bun for the main process and webview bundle, and produce compact self-extracting releases with small binary-diff updates. Official platform support covers macOS 14 and later, Windows 11 and later, and Ubuntu 22.04 and later.

Nextron combines Next.js and Electron so developers can create desktop applications using familiar React and web-development workflows. It supplies project conventions, development commands, and packaging through electron-builder, with configuration for application metadata, resources, output, and platform targets. ESM projects are supported, but packaging still follows host-platform constraints—for example, macOS binaries must be built on macOS.