Building

https://wiki.gnome.org/Newcomers/BuildGnome

Inspector

https://wiki.gnome.org/Projects/GTK%2B/Inspector

Javascript

https://wiki.gnome.org/action/show/Projects/Gjs?action=show&redirect=Gjs https://wiki.gnome.org/Projects/GnomeShell/DebuggingJavaScript https://developer.gnome.org/gnome-devel-demos/stable/03_getting_the_signal.js.html.en

Review

https://wiki.gnome.org/Projects/GnomeShell/Development/WorkingWithPatches