My laptop (unfortunately) has a HiDPI display. When I ran the installer, I picked GNOME as my desktop environment. However, my display doesn’t work with the default GNOME configuration.
For some reason, GNOME says it’s scaling at 200% in the settings menu, but there seems to be some mismatch with other parts of the system. Some apps, like Emacs, appear tiny.
Anyway after checking the Arch Wiki, I tried running these (slightly modified) commands.
$ gsettings set org.gnome.settings-daemon.plugins.xsettings overrides "[{'Gdk/WindowScalingFactor', <2>}, {'Gtk/CursorThemeSize', <48>}]"
$ gsettings set org.gnome.desktop.interface scaling-factor 2
And everything seems to be working now! 
(Gah. Zoom is still tiny. Gotta manually fix. 
)
Question: How do I capture this configuration in a Guix config file?? Can it go into my system or home config??