Export your OTP database to an (optionally) encrypted file on a USB stick and put that in a lockbox/somewhere safe. If encrypting the stick/file: make sure you use a memorized/written down password.
You can set up a VPS and tunnel that to your minecraft server using wireguard some iptables magic if you’re into Linux.
Export your OTP database to an (optionally) encrypted file on a USB stick and put that in a lockbox/somewhere safe. If encrypting the stick/file: make sure you use a memorized/written down password.