NanaBox is a third-party lightweight XAML-based out-of-box-experience oriented Hyper-V virtualization software based on Host Compute System API, Remote Desktop ActiveX control and XAML Islands. NanaBox is not a Hyper-V client because Host Compute System API is low-level API of Hyper-V WMI Providers which used in Hyper-V Manager, and Host Compute System API is stateless which not available to manage virtual machines listed in Hyper-V Manager. NanaBox chooses Host Compute System API instead of Hyper-V WMI Providers because the author (Kenji Mouri) wants to have portable virtual machine configurations and feels disgusting for registering virtual machine configurations into system. NanaBox chooses define own JSON-based virtual machine configurations format because Hyper-V's VMCX is a binary format and no documented format definitions from Microsoft. All kinds of contributions will be appreciated. All suggestions, pull requests, and issues are welcome. For more information about development roadmap, please read https://github.com/M2Team/NanaBox#development-roadmap. Before using the NanaBox, the author recommend you to read NanaBox Configuration File Reference (https://github.com/M2Team/NanaBox/blob/main/Documents/ConfigurationReference.md) first. If you want to sponsor the development of NanaBox, please read the document about NanaBox Sponsor Edition at https://github.com/M2Team/NanaBox/blob/main/Documents/SponsorEdition.md. It's free for all NanaBox source code repository contributors. In general, NanaBox Sponsor Edition is more like a contributors' edition, but we provide a way to purchase the honor and make someone appear as a source code contributor, because NanaBox is always a community-friendly open-source project.