vlmcsd is a replacement for Microsoft’s KMS server
https://github.com/mikolatero/docker-vlmcsd?tab=readme-ov-file#vlmcsd-is-a-replacement-for-microsofts-kms-server https://learn.microsoft.com/en-us/windows-server/get-started/kms-client-activation-keys?tabs=server2025%2Cwindows1110ltsc%2Cversion1803%2Cwindows81 192.168.10.220:1688