One of the main things you will want to add to your flows as you restore them from backup or migrate them between clusters is apply appropriate parameters.
So you can import the parameter contexts and then connect them to the correct process group(s).
nifi-toolkit-1.12.0/bin/cli.sh nifi import-param-context -u http://edge2ai-1.dim.local:8080 -i parameter.json
Note, values can be encrypted so the NiFi Operator or Developer doesn't have to see keys or protected values.
See an example script: