Reinstalling HA

Hi all,

I am just about to embark on a complete rewrite of my Home Assistant well everything. It has just become a bit messy over the past few years. I was also wanting to have some redundancy. I have 2 NUC’s one with my current installation and one which I shall be using for the rewrite. I have a lot of IoT things probably 100+ bulbs, devices, media players, heating etc etc.

My current plan is to move my mqtt server off the original NUC and put it on my home server then both instances can use it and slowly transfer everything over. Starting with the purely automatic things that we never need the app for.

Does this sound like a decent approach?
Any ideas or suggestions would be most welcome.
Once I have finished does anyone know of a good way to keep them both in sync? I would like to use one as a staging environment before putting it into production as were.

Thanks

Although you have not provided hardware details, you might want to consider using a type 1 hypervisor, like Proxmox, to host not only HAOS, but also be able to host for example Pi-hole, tunnelling like Tailscale and/or Cloudflare Tunnels, webservers, MQTT brokers, NVRs, etc. If you have the right hardware, system virtualisation (docker is application virtualisation) is the way to go long term. And if in the future you can add one more NUC you can even create a Proxmox cluster to create an automated failover system allowing you to lose any one node in the cluster with no downtime.