Agree with others, Vaultwarden is probably your best bet. I’ve found the default app to be a little flaky, but ended up using Keyguard, which I’ve found really good.

I used to use Keypass+Syncthing, but found sync conflicts too often (due to Syncthing support for Android), hence the switch.

Anything USB connected more likely to be flaky, but a good enterprise disk shelf and a HBA card would be rock solid (just noisy…)

Unfortunately my solution when I did a big data migration was to buy more (cheap) storage lol. Ultimately it was a cost vs. time/stress tradeoff.

Physical space is actually a huge issue

Ah then I’d recommend keep the existing machine as the server (it sounds like it’s serving you well hardware wise), and get a SFF machine for regular desktop use, be that a new build or a used office machine. The trick will be in migrating the server to Linux, and without endangering your data in the process.

In short, I’d recommend option B/C, where you buy used enterprise grade equipment, learn to run Linux, and build out that way. I can’t overstate just how good a deal can be had on eBay, even from reputable sellers. This goes for everything, from the computer itself, to disk shelves, to HDDs and SSDs. Plus you’re reducing on e-waste! Used HDDs are a great deal if you buy enough to run redundancy (RAID 6 or equivalent), because the seller will often include a warranty (up to 5 years!). I’ve only had a handful of drive failures and 0 issues with warranty refund/exchanges.

You’re running roughly the same services as I do (though a bit more storage), so if it means anything, I’ve ended up using the following (all purchased used)

Broadly, I find the following with my setup:

• Pros
  • Easily expandable storage using a HBA
  • High reliability (ECC memory, server grade equipment)
  • Used equipment is cheap
• Cons
  • Running mostly older-gen hardware, not cutting edge performance
  • Bulky, noisy cooling, less power efficient

A few things that might help narrow options down:

• What’s your budget?
• Do you expect to host more stuff in the future? Do you need more RAM/CPU performance?
• How much physical space do you have? Do you have a place where could store equipment if it were noisier?
• How expensive is your electricity? Is efficiency important?
• How much of your 100TB is full?

For sure, there could be one person with 1.1 and 10 people with 0.99, but the average will still be 1.0

“Half our students are below average!” kinda vibes - KDR necessarily means that for every person with 1.5, there is someone with a 0.67, that’s just how the math works. If I’m anywhere near 1.0, I’m happy.

I have 35mbps upload from the ISP, and limit each stream to 8mbps. This covers direct streaming all my 1080p content and a 4K transcode as needed.

I currently have 6x10TB of these drives running in a gluster array. I’ve had to return 2 so far, with a 3rd waiting to send in for warranty also (click of death for all three). That’s a higher failure rate than I’d like, but the process has been painless outside of the inconvenience of sending it in. All my media is replaceable, but I have redundancy and haven’t lost data (yet).

Supporting hardware costs and power costs depending, you may find larger drive sizes to be a better investment in the long term. Namely, if you plan on seeing the drives through to their 5 year warranty, 18TB drives are pretty good value.

For my hardware and power costs, this is the breakdown for cumulative $/TB (y axis) over years of service (x axis):