towerful

Pretty much any mikrotik is a fantastic piece of kit to have.
It is so unbelievably versatile.
I love the various mikrotik routers, switches and APs I have. I use them all the time for little ad-hoc networks and projects and stuff.
You will learn a lot about networking when using them.

But Unifi is a hell of a lot easier to use, and I have not found anything I can't do on unifi (but I don't do bgp, mlag, etc at home).

Pretty sure all ram manufacturers are Korean? I guess China puts chips on PCBs, maybe? But South Korea has the knowledge . And it had met domestic demand. RAM prices have been acceptable for many many years.
It's the AI sector that is inflating demand (maybe by circular investment and contracts).
So, I don't see anyone investing 10 years into the future to make ddr6 ram where their business plan relies on current trends.

It must take so much R&D to achieve anything remotely comparable to what Samsung, Micron (/Crucial... RIP) and SK Hynix can produce.

Fingers crossed they can either undercut the 3(now 2) big producers, which is doubtful. But hopefully they can help reduce the maximum price that decent memory can inflate to. Because at some point a medium sized customer is gonna get fed up of the Samsung/micron/skHynix bullshit, and custom order the ram they need, and such a smaller producer will provide a much better service for a similar price

Only for multi CPU mobos (and that would be pinning a thread to a CPU/core with NUMA enabled where a task accessed local ram instead of all system ram). Even then, I think all ram would run at the lowest frequency.
I've never mixed CPUs and RAM speeds. I've only ever worked on systems with matching CPUs and ram modules.

I think the hardware cost and software complexity to achieve this is beyond the cost of "more ram" or "faster storage (for faster swap)"

Oh, and on the "fail often" thing...
Get a basic/old/free pc/laptop and install Proxmox on it.
Loads of tutorials out there, but the basic installer will get you to a "I'm learning" stage.

Create a VM, install Debian, play around.
Then: create a new VM, install Debian, create a snapshot, play around until it does what you want, restore the snapshot, do the steps that got you from vanilla to what you want. Create snapshots along the way as checkpoints. Snapshot, tinker, restore snapshot, advance.

Proxmox is amazing for learning VMs and server things

Raspberry pis are an easy intro to actually using computers (instead of using something like windows).
Raspbian is great (based on Debian) and there is a HUGE community for it.

So yeh, it's a great started for $25, as long as you have a PSU and SD Card. And an hdmi cable + monitor + keyboard at your disposal (and a mouse if you are installing a desktop environment (IE something like windows, whereas headless is a full screen CLI).
And don't get your hopes up for a windows replacement.

But.... Why not run a Virtual Machine? If you have a windows machine, run VirtualBox, create a VM and install Debian on it?
That's free. You can tinker and play.
And the only thing you are missing from an actual raspberry pi is that it isn't a standalone device (IE your desktop has to be on for it to be running), and it doesn't have GPIO (ie hardware pins. And if this is your goal, there are other ways).

If you really really want a computer that is on all the time running Linux (Debian, a derivative (like raspbian) or some other distro) - aka a server - then there are plenty of other options where the only drawback is lack of GPIO (which, in my experience, is rarely a drawback).
And that is literally any computer you can get your hands on. Because the raspberry pi trades A LOT for its form factor, the ethernet speed is limited, the bus speed is limited (impacting USB and ethernet (and ram?)), the SD card is slower and will fail faster than any HDD/SSD. The benefit is the GPIO, the very low power draw, and the form factor - rarely actually a benefit.

I'd say, play around with some virtual box VMs. See what you want, other than Fear Of Missing Out (things like PiHole? They run on Debian, or even in a docker container). Then see if you actually want a home server, and what you want to run on it.
It's likely you won't want a raspberry pi, but a $150 mini pc that can actually do what you want.

I'm amazed it's France before Germany.
But I'm also so happy that this is happening.
The greatest war in history and all the horrors behind it should never be forgotten/hidden/suppressed/rewritten.
Everyone commited atrocities in that war. Nobody is without stain.
Document it all, and make it all widely available

If that threat actor is building the technology, then yeh any threat actor could.

The concern is the unknown unknowns inside the tech that might be controlled by said threat actors. So you can take all the precautions and add in resilience, but if it's all from the same threat actor then all that is moot.

So the resilience and precautions comes from buying from multiple sources. Even developing our own production for it so what's inside can be known and regulated securely

Yes, but they've put a fancy canopy thing over it to make it look like a seewiz

To me:
Window seat has lack of shoulder room - bad.
Middle seat had 2 arm rests that I have to shrimp to rest my arms on - bad.
Aisle seat has 1 (bad) arm rest, but has shoulder and leg room - good.

I don't care about window seats AT ALL

This is my favourite movie