Windows 10X build 20280

Windows 10X build 20280 is an unconfirmed build of Windows 10X. It was mentioned in a tweet by Zac Bowden on 8th January 2021, with the possible cause for the build's existence being a breaking bug in build 20279. It has never received a public release, and all self-hosting efforts of Windows 10X were later terminated in February 2021 in order to focus on Windows 11 instead.