Do you know how that works? Is it something like Ubuntu where Canonical uses some sort of chain from Microsoft or do you have to embed the cert they provide into UEFI yourself?
Yes, failing to safeguard keys is fatal, but that applies to everything. But if fs you're storing keys on is behind luks and they're readable by root only - you're as safe enough. There're also LSMs like selinux that can increase the complexity of attack.
I don't know about nitrokey specifically, but TPM is an option (not good enough, imo) and a simple luks encrypted usb. You could get some convenience by storing the key to unlock it somewhere on the encrypted root.
In general - you cannot stop a targeted attack no matter what, but staying safe from all the automated ones is doable.
in case you want to tell me what I have is fine and I don't need an upgrade
What you have is fine and you don't need an upgrade 😁
But we're not looking for fine, are we? :)
I would keep the gpu and get as many cpu cores and ram as my budget allows. Once you cross into "stupid amount of RAM" territory you can start utilising tmpfs for transient things such as jellyfin transcode directory to:
preserve those precious ssd writes (not really relevant anymore)
make it more efficient (feels-good kind of relevant)
running a filesystem in ram is really cool (most relevant, naturally :D)
It is a system one has to understand fully, i.e. not like ssh, where you can understand connecting to a remote host without bothering about key pairs, x11 forwading, etc.
I was lucky enough to have figured out Gentoo enough where plugging in secure boot was just extending my own system update script. Admittedly, I don't know how much other distros fight back.
In general - things that are colourful and/or have special effects.
Blue Planet, Top Gun Maverick, Fast and Furious saga (not the first few, 4k made no difference there) come to mind first atm.
Things that have acting and script itself as the main selling point generally are perfectly fine in 1080p. The Office and Slow Horses would be a good example of that, I suppose.
Personally, I get everything I want my son to watch in the highest quality I can - Shawshank Redemptiom and Shutter Island are the latest additions to my library that, I think, would absolutely fine in 1080p, but... 4K HDR it is :D
Yea, I guess that initial total lack of understanding and big headlines has left a long-lasting scar.
Admittedly, secure boot could be used to lock a machine down if the ability to turn it off and/or manage the keys yourself was removed.
All users from all instances get the post from their home instance.