A developer showcased an experimental Windows application that boots a complete Linux desktop in a window using Microsoft Build 2026 technologies. The project, called Azure Linux Desktop, launches an embedded container running XFCE on Azure Linux 4.0 with audio, GPU acceleration, and seamless copy-paste functionality. No setup wizard or terminal required—just launch the app and you're at a Linux desktop.

The demo stitches together four emerging Microsoft tools. wslc serves as the container runtime, running OCI containers natively on Windows with CLI and API support. WinUI Reactor provides a code-first approach to building interfaces using C# composable functions instead of XAML. Azure Linux 4.0, built from Fedora 43 snapshots, acts as the base image despite being server-focused. The app targets .NET 10 and packages through Windows App SDK.

Technical implementation required creative workarounds. The RDP client ActiveX control couldn't integrate directly with WinUI, so the developer parked it in a borderless WinForms window glued to the main interface. Timezone synchronization converts Windows IDs to IANA format automatically. Audio works through a compiled PipeWire module since WSLg audio isn't available in container sessions.

While the author admits this is a toy project requiring unstable WSL builds and package hacks, it demonstrates how Microsoft's latest developer tools can interoperate. The proof-of-concept reveals both the potential and current limitations of running Linux desktops seamlessly on Windows through containers.

GitHub repository sirredbeard/azurelinux-desktop contains the full implementation details and build instructions.