I fucking love copyparty. It starts simple enough but then the millions of options and configs let you twist it into exactly what you need.
As someone that runs a server OS that doesn't support docker, it is very refreshing to see a single binary project. It has a focus on being administrator friendly thats really fallen out of fashion these days.
I think it would be fine. Friend of mine has Immich on a N100, like you mentioned, the initial ML tasks on a big library takes over 24 hours but once it's done it doesn't need much. I don't have experience running next cloud but the others you mentioned don't need much RAM/CPU.
ZFS doesn't need much RAM, especially for a two disk 4TB mirror. It soaks up free RAM to use as a cache which makes people think it needs a lot. If the cache is tiny you just end up hitting the actual speed of the HDDs more often, which sounds within your expectations. I dare say you could get by with 8 GB, but 16GB would be plenty.
I'd only point out if you're looking for it to last 10 years, a neat package like the ugreen might bite you. A more standard diy PC will have more replaceable parts. Would be bigger and more power hungry though.
That is fricking sick dude!
I don't understand. Police can track you down via your credit card, your phone, your licence plate on your car, rando security cameras. All of these are hard to avoid. How often does your ID not just get checked, but recorded? It seems like not much of a game changer.
I think you're connecting digital IDs with people's online activity for some reason. In most countries, authorities can already connect online activity with an individual, since you register and pay for internet. Doing things that the powers that be don't like will get you in legal trouble. Remember the 2000s when the music industry sued individuals for millions? In China they take down your post if it challenges social cohesion, in the USA they take all of your money and assets for challenging corporate revenue.
Most digital IDs are options for people that already have their bank/credit card on their phone and don't want to carry a wallet just for ID. Some places like Estonia go further with actual asymmetric keys that let you sign documents with your ID's private key that proves you signed it.
Ah kay, definitely not a RAM size problem then.
iostat -x 5
Will print out per drive stats every 5 seconds. The first output is an average since boot. Check all of the drives have similar values while performing a write. Might be one drive is having problems and slows everything down, hopefully unlikely if they are brand new drives.
zpool iostat -w
Will print out a latency histogram. Check if any have a lot above 1s and if it's in the disk or sync queues. Here's mine with 4 HDDs in z1 working fairly happily for comparison:
The init_on_alloc=0 kernel flag I mentioned below might still be worth trying.
sync=disabled will make ZFS write to disk every 5 seconds instead of when software demands it, which maybe explains your LED behavior.
Jeff Geerling found that writes with Z1 was 74 MB/sec using the Radxa Penta SATA HAT with SSDs. Any HDD should be that fast, the SATA hat is likely the bottleneck.
Are you performing writes locally, or over smb?
Can try iostat or zpool iostat to monitor drive writes and latencies, might give a clue.
How much RAM does the Pi 5 have?
Back in the day I used a raspberry pi 3 for 1080p h.264 and steam link / moonlight. Problem was omxplayer plays up to 1080p60 beautifully, but anything else would struggle. Eventually 'upgraded' to an old laptop to easily YouTube/netflix in the browser too.