As it happens, there is no real need to constantly poll for changes,
since XFixes can inform us of updates as they happen.
With GTK+ gone we've got dependencies and error handling under control.
XCB is a truly awful thing to learn, though.
Our method will never work on Wayland or Windows, so we don't miss out
on anything by abandoning the huge toolkit.
I've come to the conclusion that copyright mostly just stands in the way
of software development. In my jurisdiction I cannot give up my own
copyright and 0BSD seems to be the closest thing to public domain.
The updated mail address, also used in my author/committer lines,
is shorter and looks nicer. People rarely interact anyway.
