diff --git a/livebox.yml b/livebox.yml
index 771607b..76b9af6 100644
--- a/livebox.yml
+++ b/livebox.yml
@@ -29,6 +29,7 @@
     extra_pkgs_bpo:
       - atftpd
       - di-netboot-assistant
+      - apt-cacher-ng
 
     live_images:
       - iso: 'debian-live-11.3.0-amd64-gnome+nonfree.iso'
diff --git a/roles/edulive/files/gnome-edu/config/package-lists/desktop.list.chroot b/roles/edulive/files/gnome-edu/config/package-lists/desktop.list.chroot
index 705dc8f..86881fe 100644
--- a/roles/edulive/files/gnome-edu/config/package-lists/desktop.list.chroot
+++ b/roles/edulive/files/gnome-edu/config/package-lists/desktop.list.chroot
@@ -8,4 +8,6 @@ plymouth-x11
 
 gstreamer1.0-vaapi
 i965-va-driver
-auto-apt-proxy
+
+## this confuses apt-cacher-ng:
+#auto-apt-proxy