I am currently working on a package to interact with Calibre
(https://calibre-ebook.com/).  The repository can be found here:
https://git.disroot.org/kjartanoli/calibre.el.  Would there be any
interest in adding it to GNU ELPA? And if so, is my copyright assignment
for Emacs sufficient, or does ELPA require a separate assignment?

This is my first attempt at writing an Emacs package, so I expect to
have gotten many things wrong.  As such I would welcome reviews from
people who know more about Elisp packaging.

-- 
Kjartan Oli Agustsson
GPG Key fingerprint: 4801 0D71 49C0 1DD6 E5FD  6AC9 D757 2FE3 605E E6B0