Wait, how do you build a personal VPN?
I work on health care. Every corp has their own VPN. :)
Shameless plug: https://www.youtube.com/watch?v=aKBy_nuBEK0
Tailscale with a self-hosted headscale server https://tailscale.com/kb/1017/install https://juanfont.github.io/headscale/faq/
https://www.pivpn.io/ So simple, anyone can do it