VeryFrugal

Linkwarden has pretty minimal hardware requirements - it was tested on a VPS with 4gb of memory and it ran pretty smoothly, the most intense part is when you build the app, but once it’s running it’s relatively lightweight.

From their website. I wouldn’t consider tested on 4gb vps having minimal hardware.

I use Linkding and I am very happy with it. Less feature? Maybe. But it’s a bookmark sync. What do you need?

No sane selfhoster should do this. This is far beyond being overkill.

There is absolutely no way you can avoid GH hosted project completely. It’s like trying to buy a phone without Chinese parts.

Not sure how the new Pi5 is but Pi4 struggles quite a bit with Nextcloud. Nextcloud is not really designed to run on low-end devices, let alone an SBC. It may seem fine for the first time but when you actually try to do something, it’ll get sluggish and oftentimes downright completely fail.

I stopped using my Pi4 for anything file related but I guess there might be something that it can reliably run(I’m guessing Syncthing).

Microsoft Excel. LibreOffice Calc if you hate yourself.

I’m being serious. You don’t sound like you need anything fancier than that.

4 hdds are not going to happen with SFF.