Get started building your own sandbox in 6 steps - https://www.automatesql.com/sandbox
For more information on building answer files, see this post - https://bit.ly/47w5CJq
This video is a demo of how to use an answer file, or autounattend.xml file, when sysprepping an image of Windows Server 2022.
Answer file used in the demo - https://gist.github.com/LukeCAutomate/439c3572186d500779b27548f1080dd8