ReactOS has successfully booted on ARM64 architecture, marking a significant milestone for the project aimed at recreating Windows NT. This experimental build has been demonstrated running on ARM64 via QEMU and on the Raspberry Pi 5. The ARM64 port is currently a proof of concept with limited functionality, and users need a UEFI ARM64 system with GICv2 or v3 enabled to run it. The ReactOS team has emphasized the experimental nature of this development, and the project is still focused on compatibility with Windows Server 2003. ReactOS is described as "an alpha-quality operating system," intended for users willing to experiment on less critical devices.