This is actually really interesting, I might have to try this.

I currently use a USB stick with a key file on it that I need to plug in on boot. Something like this but it wasn’t that easy for me. https://openterprise.it/2022/07/fedora-unlock-luks-full-disk-encrypted-system-using-usb-stick/

Edit: I wonder if yours will work on my VPS… I’d love to encrypt that.

I host pingvin for people to send stuff to me. To send, usually I’ll just move the file into a folder that exposed to Nginx with indexing and send that link. Otherwise I’ll also just use my pingvin instance.