update use

profiles/CB2/package.use

@@ -31,3 +31,6 @@ media-plugins/alsa-plugins pulseaudio
 media-video/pipewire -sound-server -pipewire-alsa
 
 sys-apps/busybox syslog
+
+# required by app-containers/containers-common-0.56.0-r1
+net-firewall/iptables nftables

profiles/templates/6_ac_update_sync/world/grp/app-containers

@@ -2,12 +2,14 @@
 
 #?in(os_linux_pkglist, CB2)!=#
 #-world(#-cl_pass_file-#)-#
+!!containers-common:0
 !!docker-compose:0
 !!docker-proxy:0
 !!snapd:0
 #in#
 
 #?in(os_linux_pkglist, CB3)!=#
+containers-common
 docker-compose
 docker-proxy
 #in#