How to setup gtkmm4 development environment?
For a project I want to use gtkmm to develop a user interface. However, as gtk3 is not that active anymore and gtk4 probably releases this year I thought of using gtkmm4. I did the setup with jhbuild as described in the docs but it doesn't build which I guess is caused by rapid development of both projects simultaneously causing inconsistencies. What version should I use and how would I achieve a working build environment?
(Using Archlinux)