For windows users, check out Twinkle Tray! Tray icon with sliders for brightness and contrast for all connected monitors, as well as power buttons. May have support for keyboard shortcuts too, not sure.

Why is this so heavily downvoted? Holy shit people, talk about a hivemind/‘group of dumbasses’…

PSTN, I don’t know of any way to encrypt the call

Many calls are VoIP nowadays though, which could be encrypted depending on your provider and upstream SIP trunks. It’s probably not end to end though, so your carrier can still spy on you.

The screenshots show it’s not just a rating, you can add text to them. Am I misunderstanding you?

Have you tried Piper?

They probably run it more than once a week :)

This is not to counter your point (I agree they should probably offer a client to sync files on Linux), but rclone recently added (beta) support for proton drive, so you might want to check that out if you’re still using it.

Not sure about Jellyfin, but Plex would transcode to a format supported by the client yes.

I’m not sure about pulseaudio but snapcast is time synced.