I don't have tutorials bookmarked yet... I did followed https://relay.tools git project to set mine over a paid vps and a registered domain; however I think the service offer a plug n play solution if using the domain and servers of them. Right away after installation it gives you a clearnet url such as https://nostr21.com that you could simply share with your relatives without a need for them to write to the protocol but still being able to read an check its content 🤙 .