Yes, definitely need to work on that. 
Just need some process sentinel and make the crdt—* variables 
buffer local.

Also in terms of yanking problem, I tried with crdt.el itself
and didn’t reproduce the bug. I then proceed to yank the whole emacs
CHANGELOG.3 into it (that’s 100k lines!) and it’s slowly going
through while almost hanging the emacsen — not sure if
this is what you observed. Shall we discuss more in detail
off list?
> On Oct 5, 2020, at 10:03 AM, Jean Louis <bugs@gnu.support> wrote:
> 
> I have noticed, if the file is no longer edited, the process for CRDT,
> collaboration in real time remains in memory, it can be seen with
> list-processes, and it prevents opening a new file to be shared.
> 
> It should be possible to open multiple files to be shared for real
> time simultaneous editing, that would invoke multiple servers tied to
> multiple buffers.
> 
> And when buffer is no longer there, server on that port should stop I
> guess.