Comment by Hobadee

> Either that or I need to go out and buy a domain... for my internal network...and then get a TLS certification for my private internal domain.

TBF, if you are on HN that should be extremely simple for you. I use a subdomain of my primary email domain I own, and use LetsEncrypt to issue TLS certs on my internal network. Well beyond the means of my mom and sister, but probably pretty easy for most people here.