I run a small cheap public VPS (512 megs RAM) which only runs Wireguard. It takes the public ports and tunnels them to my home machine (2 Gig VM) running Ubuntu

I run a small cheap public VPS (512 megs RAM) which only runs Wireguard. It takes the public ports and tunnels them to my home machine (2 Gig VM) running Ubuntu running postfix, dovecot, mysql (for users, domains, aliases), fully self-hosted over 20 years. That's for personal and some business. I run my own simple spam fighting service I wrote in plain Java and run it in Docker. The same 2 Gig VM also runs my multiple web sites all in Java. That same 2 Gig VM runs on KVM on an Ubuntu host. I use Gmail, Hotmail, Yahoo for stuff I don't really feel is personal but potentially important, useful or otherwise interesting.