And here i got best compression out of xz for SQL.

That's also one of the things that worries me the most. What kind of data is being sent to these random endpoints? What if they to rogue or change their behavior?

A static set of tools is safer and more reliable.

O(depth) too, no? The events have to bubble up to the window before triggering your handler.

This doesn't appear to be true. My Plex media server is ancient and it really struggles if it has to do any kind of transcoding. Definitely can't handle high bitrate 4k stuff.

This seems unnecessarily hostile. They are asking. Here.