Really enjoying Nathan’s course and the delivery format. - Congrats to you.
I’m new to Station X and wanted to throw some links I find helpful.
I’ve set up several home labs including virtual machines a few low cost Raspberry Pi units. This gives me a versatile small LAB network that is affordable and clean LEGAL private way to test things out securely and improve my skills.
White Dome Consulting nicked as Re4son, wrote a very reliable Kernel for Raspberry Pi. He also set up ready to install images of Kali and 3 targets call DV (damn vulnerable) so you can just run them on 3 or 4 PI’s and really practice skill sets. They also work on Pi Zeros.
Hope its of use to fellow learners here.