It's on my list. I've played with DuckDNS in my time with Home Assistant, I used to get external access through it and Nginx and honestly loathed it. I was SO HAPPY when I got Cloudflare working.
I am now working for a global company and I've noticed that the intranet here doesn't have valid SLL certificates at all, which I know is a security concern, so with a bit of research and tinkering I believe I can become more knowledgeable about this kind of thing than the IT manager of our factory. Might help me work up to a position that isn't on a line anymore.