Hello Vivien, > GNOME builder is not ready yet for libsoup 3, so I suggest that we add a > libsoup 2 variant for devhelp, and use libsoup 2 everywhere for > builder. What do you think? Seems fair, pushed both patches to c-u-f. I noticed the following warnings at Gnome-Builder start: --8<---------------cut here---------------start------------->8--- 10:07:16.8272 ide-application-plugins[ 19073]: CRITICAL: Cannot enable Python 3 plugins: Typelib file for namespace 'GtkSource', version '4' not found 10:07:16.8319 libpeas[ 19073]: WARNING: The 'python3' plugin loader has not been enabled 10:07:16.8320 libpeas[ 19073]: WARNING: The 'python3' plugin loader has not been enabled --8<---------------cut here---------------end--------------->8--- Something we would like to fix? Thanks, Mathieu