By the way, Zotero is approved by the FSF:
http://directory.fsf.org/wiki/Zotero_client
Thank you very much for your detailed response jxself. I assumed that for FSF
officially approved application one just lists it in the repo, or something
like that.
My field of expertise is quite different from what's needed to maintain and
manage a software package or to make a Helper. My one and only computer
programming class in college was 20 years ago... The only scripts I can write
nowadays are to run some statistical analyses in stat packages.
But if this is what's needed (someone to maintain and manage it or to make a
Helper), I will ask the Zotero developers if they would consider doing that.
They certainly have the expertize and they do want to make it easy for as
many people as possible to use Zotero. They got grants from some very notable
foundations to do exactly that.