Well, what you could do is run a DNS server so you don't need to deal with IPs. You could likely adjust ports for whatever server to be 443 or 80 depending on if you're internal only or need SSL. Also, something like zerotier won't route your whole connection through your home internet if you set it up correctly, consider split tunneling. With something like zerotier it'll only route the zerotier network you create for your devices.