Is it too early to request packages for MX-21, which is just into the RC stage?
Are the packagers too busy with the release?
I am looking for jerry, a nice chess front end for the chess engines like stockfish.
It was in the MX-19 repos, so can it be upgraded for MX-21?

There is a snap here, but it only lists for Debian 10. (That page last updated January 2021)
https://snapcraft.io/jerry
with the developer here:
https://github.com/asdfjkl/jerry