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Broadcom terminates VMware's free ESXi hypervisor
(www.theregister.com)
This is a most excellent place for technology news and articles.
There's also harvester. The spec requirements are pretty heavy compared to some of the other options though.
Harvester is a modern, open, interoperable, hyperconverged infrastructure (HCI) solution built on Kubernetes.
It is an open-source alternative designed for operators seeking a cloud-native HCI solution.
https://github.com/harvester/harvester