nostr-relay-tray can easily enable you to run your own relay on your home computer.
Discussion
how are you hole punching?
I've written a simple reverse proxy service and integrated it into the nostr-relay-tray. It can be easily enabled.
https://github.com/CodyTseng/pigeon
Not everyone has a home computer in a country that allows unrestricted internet access
Not everyone even has a home computer at all