Homelab question

So I'm planning to build a homelab to learn how to use and get familiar with used tools in blue-team. So far:

\- Pfsense

\- splunk or elk

\- Nessus

\- windows AD

\- VNC to connect to the homelab

What do u guys think I should add to get a better understanding of security?

blue build connect cybersecurity elk homelab learn nessus pfsense planning question security splunk team tools understanding vnc windows