This touches my project only at the margin, but my employer agreed to reduce my working hours to 26/week! It was my psychologically motivated target to be able to leave the office at 15:00h if I start working at 8:00h. As I sometimes might begin later and might have to stay a little longer if needed, the leaving time will often get postponed anyway.
The change of my employment contract leads to a “restart at zero”, i.e., all unused holidays and accumulated overtime will get paid off, which isn’t such a benefit for me. However, I have reached a milestone. If I really want to stay in my time plan, I’ll have to do 5 pages/day in Blatter as well as in Gröchenig, and this is only possible if I have enough time available. And there is much more literature.