In January 2026, Microsoft launched the public preview of the WinApp CLI, a command-line tool for Windows application development that is open source and supports various frameworks including .NET, C++, Electron, and Rust. The tool aims to simplify the complexities of Windows development by providing a unified entry point for environment setup, configuration, and packaging. Key features include the winapp init command for environment initialization, the winapp create-debug-identity command for attaching package identities without full MSIX packaging, and automation capabilities for manifests, certificates, and signing processes. The CLI also supports Electron and Node.js scenarios, allowing developers to inject package identity into running Electron processes. The WinApp CLI is currently in public preview, with potential changes before general availability, and an updated version 0.2.0 was released in late February 2026. It can be accessed via WinGet, npm, and as a GitHub project for community contributions.