Hi I will have to step down as a maintainer of XBoard, would be great if someone else wants to step in;)
It's not that much work, mostly getting the copyright paperwork started for new developers, keeping the web page up to date, doing releases, and be a contact point for people from the FSF and GNU, etc. Some information can be found here: https://www.gnu.org/prep/maintain/maintain.html happy holidays Arun
