As mentioned, CodeReady Containers (CRC) is the easy button for a single node setup [0]. But it is heavy for a single node. Alternatives for labs and demos are learn.openshift.com [1] and the All-in-One VM blog [2]. Storage isn't too important in a single node setup unless you're looking for Metrics, Logging, and Monitoring to be turned on. You could use NFS if you have to. Just don't do that in Production, IMO.

[0] https://developers.redhat.com/blog/2019/09/05/red-hat-opensh...

[1] https://learn.openshift.com/

[2] https://www.openshift.com/blog/revamped-openshift-all-in-one...