https://github.com/kobolabs/Kobo-Reader
Giorgio has reported getting advice from the Kobo team, as well. I would agree though it seems that they are operating their development at a low level and appear driven, when there is any appearance of an effort on their part, in a direction that would appeal to marketing and sales, rather than toward a more functional reader. They appear less interested in fixing existing issues and more in creating a more marketable product.
Luck;
Ken