Rclone can do this for you.

No reverse proxy. In LAN everything is seen and accessible.

No port is open to WAN, I connect via my router VPN from extern.

I use unpriveliged LXC für everything I have running in my proxmox.

Plex, syncthing, rclone, motioneye, pyload all in seperate Lxc on the boot drive.

All data of those is on my mirror raid, including the lxc backups. The rclone lxc backs the important data onto my cloud drive.

If your concern is booting USB for unraid the
solution is to sacrifice at least one of your drives
as a boot drive, or if you have the room get a pair
of small SAS drives and configure a raid 1 vol in
the perc controller.

AFAIK the USB is the dongle that unraid runs at all. You have to boot from it. After the boot its loaded into the RAM. But without the USB drive you cannot boot at all.

That is why I followed the proxmox route.

Seems like the world couldn’t agree to a standard at all.

https://www.worldstandards.eu/electricity/plugs-and-sockets/

As ITX was already mentioned I just built mine using Fractal Node 304 case, in black though. You could keep the ATX power supply.

Depends, in proxmox using ZFS mirror using two drives it goes degraded when missing one.

But would use it carefully tbh as it is all that’s left over in that case. If there is no external backup.

I just built a Server almost using the same parts. Its the ASRock J5040 board, 16gb ram (yes it works) a 500gb m.2 as system using a PCI adapter , 2x4tb ironwolf as ZFS mirror pool, 350 W power supply all in the node 304 fractal case for 550 euro.

Runs proxmox as hypervisor for VM or Container. As example LXC running container for motioneye, jellyfin, pyload with openvpn and syncthing.

I just built a Server using J5040 board. With 16gb ram (yes it works) a 500gb m.2 as system using a PCI adapter , 2x4tb ironwolf as ZFS mirror pool, 350 W power supply all in the node 304 fractal case for 550 euro. It has 4 sata 6 connectors.

Runs proxmox as hypervisor for VM or Container. As example LXC container for motioneye, jellyfin and syncthing.

I just built a Server using J5040 board. With 16gb ram (yes it works) a 500gb m.2 as system , 2x4tb ironwolf as ZFS mirror pool, 350 W power supply all in the node 304 fractal case for 550 euro.

Runs proxmox as hypervisor for VM or Container. As example LXC container for motioneye and syncthing

I just built a Server using J5040 board. With 16gb ram (yes it works) a 500gb m.2 as system , 2x4tb ironwolf, all in the node 304 fractal case for 550 euro.

Will run proxmox as first layer.