Target commands to regular /etc

I assume that `ostree commit` copies these to `/usr/etc` or something?

Unclear how this ever worked in the first place. Something upstream
must have changed... or something. I really don't know.

build.sh

@@ -23,7 +23,7 @@ flatpak install --noninteractive --system im.riot.Riot com.nextcloud.desktopclie
 
 ### Configure system
 
-cat > /usr/etc/gdm/custom.conf <<EOF
+cat > /etc/gdm/custom.conf <<EOF
 # GDM configuration storage
 
 [daemon]
@@ -44,15 +44,15 @@ AutomaticLogin=seagloperator
 EOF
 systemctl enable seagl-reset-users.service
 
-cat > /usr/etc/sudoers.d/10-unconditionally-grant-sudoers <<EOF
+cat > /etc/sudoers.d/10-unconditionally-grant-sudoers <<EOF
 # Don't bother laptop users with needing to know passwords:
 # rooms with laptops are physically secured by UW staff when
 # unattended at the venue.
 ALL            ALL = (ALL) NOPASSWD: ALL
 EOF
 
 # https://askubuntu.com/q/1037553/49090, https://askubuntu.com/q/1014965/49090, dconf(7)
-cat > /usr/etc/dconf/db/local.d/00-suppress-autosuspend <<EOF
+cat > /etc/dconf/db/local.d/00-suppress-autosuspend <<EOF
 [org/gnome/settings-daemon/plugins/power]
 sleep-inactive-ac-type='nothing'
 EOF
@@ -63,12 +63,12 @@ cd /usr/share/gnome-shell/extensions/appmenu-is-back@fthx
 unzip /tmp/appmenu-is-backfthx.v3.shell-extension.zip
 cd /usr/share/gnome-shell/extensions/[email protected]
 unzip /tmp/grand-theft-focuszalckos.github.com.v7.shell-extension.zip
-cat > /usr/etc/dconf/db/local.d/00-gnome-shell-extensions <<EOF
+cat > /etc/dconf/db/local.d/00-gnome-shell-extensions <<EOF
 [org/gnome/shell]
 enabled-extensions=['[email protected]', 'appmenu-is-back@fthx', '[email protected]', '[email protected]']
 EOF
 
-cat > /usr/etc/dconf/db/local.d/00-disable-gnome-shell-animations <<EOF
+cat > /etc/dconf/db/local.d/00-disable-gnome-shell-animations <<EOF
 [org/gnome/desktop/interface]
 enable-animations=false
 EOF