Guestshells running CentOS 7 will be unable to update or install system packages since the the default repositories have been deactivated (EOL).
This article shows how to configure and use "Vault" repositories if updating to a newer version of the NX-OS Guestshell running Rocky Linux is not an option.
Guest Shell is an LXC container that runs on Nexus switches (if enabled). Typically this separate execution space is accessed from the NX-OS CLI by typing guestshell. This article shows how to enable SSH within the Guest Shell so you can SSH directly to it.
Secure NX-API calls using HTTPS with a self-signed certificate.
Considering the 9000v is really only for labbing this isn't a huge deal, but I was able but to default an interface from enable mode; config mode is not required. I don't know if this is something I'd neccessarily consider a bug, but its something I'll definitely keep in mind when working with these images.
Configure EIGRP on the N9K platform (running NX-OS code to support routing over vPCs) to establish dynamic routing adjacencies and achieve ECMP on a vPC VLAN over the vPC peer-link and L2 vPC links (port-channels).