I use a simple WireGuard VPN to use my home DNS when I’m out. This container from linuxserver.io was really easy to set up, and the WireGuard app works great on iOS/Android. You can even have it automatically turn on and off depending on your network.

I tried fancy mesh networks like Tailscale, but it was over-complicated for my setup and kept causing DNS issues. Some people find this works well for them, though.

Either way, you can go full self-hosted this way and save money.