Accelerate Showcase: Built with AI, Designed with Stitch

A product manager at Avalonia UI built a polished desktop showcase app without writing any code manually, using Claude Code, Google Stitch for UI design, and Avalonia's DevTools and Parcel MCP servers. The workflow involved generating component skills from documentation, prompting Claude to design and implement an MVVM app targeting .NET 10 for Windows/macOS/Linux, and using the Parcel MCP server to handle cross-platform packaging including macOS code signing and notarization. The result was a shippable app produced in roughly an hour, compared to an estimated week of designer-plus-engineer effort. The post highlights where AI is genuinely useful for Avalonia: building applications with it rather than building the framework itself.