Which dev repo I should submit if I want to add yacreader to openSUSE Factory?

Hi folks, I am using yacreader (https://www.yacreader.com/) for e-book and comics reading. I am interested in contributing my packaging at https://build.opensuse.org/package/show/home:opensuse_zh/yacreader to the Factory repo, but I need to first find a development repo to host it. Which one is the best to submit this application? Best, Xu -- Xu Zhao i@xuzhao.net