If you want to send files between just your own devices KDE Connect is great and can do many other things too. If you are on Gnome there is a gnome extension for better integration (gsconnect I think?)

The title of the post

“USB4” (not USB 4.0) released in 2019 and “USB4 Version 2.0” (not USB 4.1) released in 2022.

The open source server allows unlimited connections I think. The point of the paid server is user & device management, shared address book and some other enterprise features

A DDoS that brings down the biggest(?) DDoS protection provider?

For .de you don’t need any of that domain privacy stuff. .de domains don’t reveal anything over whois except the company you registered the domain at (and DNS servers, but domains are useless without that). You have to do some special request to get more than that. Idk how hard it is to make such a request though

https://webwhois.denic.de/?lang=de&query=example.de
https://www.denic.de/service/whois-service/anfragen-dritter-zu-inhaberdaten/

https://forgejo.org/static/forgejo.mp4

There is a fork of Firefox Send

https://github.com/timvisee/send

If you already selfhost Bitwarden/Vaultwarden, you can use Bitwarden Send too.

Some projects I recognize/like:

• kbin
• bcachefs
• Briar
• Castopod
• Collabora Online and LibreOffice
• CryptPad
• DAVx⁵
• Diesel
• Jitsi
• ForgeFed
• Forgejo
• Friendly Forge Format (F3)
• Funkwhale
• fwupd
• Matrix
• KDE
• Lemmy
• Mastodon
• Misskey
• Nitter
• OpenStreetMap
• Organic Maps
• PeerTube
• Pixelfed
• Pleroma
• postmarketOS
• Searx
• PulseAudio
• Qubes OS
• Redox OS
• Servo
• StreetComplete
• Tauri
• UnifiedPush
• WireGuard
• WordPress ActivityPub

Btrfs has it’s own build-in raid. From what I understand you should mount the filesystem with -o degraded and then use btrfs replace to switch to the new drive. I’ve never had to do that myself yet though.