You watched Matthias’s talk at Linux App Summit last week and you wish you could try the demos yourself? Excellent!
During the Q&A section, Cassidy James asked if there was any Flatpak available, an hour after that we published a Nightly version of GTK4 Demo along with the Widget factory and the Icon Browser in GNOME’s Nightly repository.
To try it all you need to do is the following:
$ flatpak install https://nightly.gnome.org/repo/appstream/org.gtk.Demo4.flatpakref
$ flatpak run org.gtk.Demo4
The Flatpak is built by the GTK CI pipeline for on each commit so it will be updatable as time goes. You can try the most bleeding edge there is, all in its little isolated sandbox without worrying about messing with your system or having to go through the soul crashing process of figuring out how to build software.