So what have I been up to? I tried installing PentaGI , git repo pulled, the hard way and after so much tinkering... it was done. Though no speedy GPU to help me, the CPU did the work well, cos it derived from the KALI Docker image pull and used NMAP n many other tools, to sniff and check stuff like that.
Ultimately, if I have a free Linux laptop, then I can walk about clients places and let it do the stuff, somewhat like WhatsUpGold and meta map things.
And I am using a very small footprint, old PC running Gen2 cpu...and honestly, it should be given a 2nd look.