Over a decade ago, there was a software in China called "Kuaibo(快播, meaning 'Fast Playback')", which offered a similar service. But different from it, Kuaibo had its own server, which allowed users to stream torrent videos very quickly. Eventually, the company was shut down due to copyright and porn issues.

I know of a few of these types of services operating in Europe presently

Unless the task is very simple, I rarely use FFmpeg commands. I use GUI tools like Handbrake, which can reduce my cognitive load. Commands only add to my pressure.

I agree with the common sentiment that handwriting is a great tool for thinking. I prefer paperless studying, but I'm always looking for good tools for writing on my electronic devices. Although formal typesetting is beautiful, my long-standing habit of handwriting always makes me want to add my own notes. That's why I really like using OneNote, as it allows me to combine both typing and handwriting.