Ephera

So, I’m not actually that deep into audio, but I believe, you need to do this: https://superuser.com/a/1827716

Direct link to the Wiki as well, in case superuser.com evaporates: https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Virtual-Devices#combine-source-selected-channels-and-sources

So, this will create a virtual audio device. And I’m guessing, you’ll then be able to select that as your microphone of choice in KDE’s sound settings.

In my mind, it was like one those burials where they push you out onto the ocean in a boat, but fast.

So, I’m actually able to reproduce that and then had to fix it myself. 😅

The “Pro Audio” profile seems to be a PipeWire thing: https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/FAQ#what-is-the-pro-audio-profile

I’m guessing, the recording device doesn’t like that profile and just crashes right away. And when it has crashed, it won’t show up in the list of available devices.

Now, how is that profile remembered even when the device disconnects? Apparently, a component called “WirePlumber” is responsible for that.
And it stores this information in: ~/.local/state/wireplumber/default-profile

If you don’t mind losing your profile selection for other devices, you can just do:

mv ~/.local/state/wireplumber/default-profile ~/.local/state/wireplumber/default-profile.old

and then do a reboot.
After the reboot, your recording device should be back.

If you do mind losing the other profiles, then make a backup of that file and try to remove lines related to your recording device, and again do a reboot to test it.
For me, it was a device which had both input and output, and I had to remove both lines before it recognized it as unconfigured.

Yeah, but that adds to the authentic The Sims™ experience…

Kind of weird how GRUB is “BURG” backwards…

Firefox and Python’s cryptography toolchain have a build dependency on Rust, which are two packages that virtually all Linux distributions have packaged. So, some version of the Rust compiler is going to be available on virtually all Linux distributions.

There’s no real reason to have the Rust compiler installed on non-dev systems, as you don’t need it for running Rust programs (although I kind of assume you know this).
But yeah, it seems to be possible to dynamically link the standard library into Rust programs, so Linux distros could try to share that between them, and then it would effectively be installed by default.