I'm not the maintainer, but the MIA process is currently broken and the the
ckb-next package is effectively orphaned. Trixie released with a 100% broken
package.

This looks like a cool funky piece of software and the upstream developer is
nice and communicative, so I think maintaining it would be a blast. I
unfortunately don't own the hardware and as such I cannot effectively test it.
So if ckb-next is something you're interested in, please step forward and take
over maintainership!

The package description is:
 ckb-next is an open-source driver for Corsair keyboards and mice.
 It aims to bring the features of Corsair's proprietary CUE
 software to the Linux and Mac operating systems.