Introducing quake-frame.el: My Take on a Terminal Visor, But Running Emacs

I noticed that in all terminal emulators I tried (iTerm, Ghostty, kitty), I rely on a system-global shortcut to show me a session that I use whenever I need to terminalize something right now, right there, like ffmpeg something or bulk delete with a pattern or convertmagick an image. I had this for ages, and I miss it when it’s not there.
