Nested virtualization is an underrated feature every home labber needs to enable
Set up nested virtualization on the right hardware, and you can run hypervisors and dev environments inside VMs

When you’re in the home lab ecosystem, you’re bound to come across cool-sounding technical jargon. For instance, there are high-availability clusters that can add more fault tolerance to your self-hosting and experimentation environment at the cost of spiking your energy bills from running too many devices. Then you've got VLANs and locally-hosted firewalls, which can add an extra layer of security to your network stack, and by extension, the rest of the devices on your LAN.