It is nice that he created a cloud environment for a pointy/clicky people :)

But if I where to do such a thing:

1. Cloud only used to send and store locally encrypted compressed backup data

2. Open an ssh port to the public, but deny logins. Only allow logins using ssh keys.

3. Download data from my system using sftp/scp

This protects you from being chased by DRM lawyers because the system is not public. Plus it is very simple to setup.

Setting up a Cloud System like described here is very great for end users, but it could get you into court, or at the very least lots of take-down notices.

The dude set it up to use Tailscale, so not really public. But it was only mentioned in passing.