Hello Tamas,
I'm experimenting with the xlib-context and have modified lines 170 and 172 to set maxheight and maxwidth to a large number.
This allows the resulting Xlib window to be resizable.
Before I continue down this path, I'd like to know whether you are open to the idea of expanding xlib-context so that it can play host to an interactive UI, instead of only *presenting* graphics. I'm thinking about creating a mechanism for passing along Xlib events etc. to a code that consumes cl-cairo2.
Joubert