Index: debian/neon-settings.postinst
===================================================================
--- debian/neon-settings.postinst
+++ debian/neon-settings.postinst
@@ -38,6 +38,31 @@
 
 mangle_unattended_upgrades
 
+# Special hack to fix qemu-arm so one can build flatpaks for plasma-mobile.
+# The problem is that by default binfmt interpreters are applied lazily which
+# breaks with bubblewrap because of namespaces. Instead we override the original
+# qemu-user-static binfmt configuration to also set the F flag (fix-binary)
+# to ensure the emulation is immediately applied.
+# This is fixed in 18.10 onwards.
+# Note that this requires fairly excessive triggers unfortunately.
+# https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1815100
+. /etc/os-release
+qemu_arm=/usr/bin/qemu-arm-static
+update_binfmts=/usr/sbin/update-binfmts
+if [ -e $qemu_arm ] && [ -e $update_binfmts ] && [ "18.04" = "$VERSION_ID" ]; then
+    echo "Overriding qemu-arm binfmt configuration with fix binary flag"
+    update-binfmts \
+        --package qemu-user-static \
+        --install qemu-arm \
+        $qemu_arm \
+        --magic "\x7f\x45\x4c\x46\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00" \
+        --mask "\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff" \
+        --offset 0 \
+        --credential yes \
+        --fix-binary yes
+
+fi
+
 # dh_installdeb will replace this with shell code automatically
 # generated by other debhelper scripts.
 
Index: debian/neon-settings.triggers
===================================================================
--- /dev/null
+++ debian/neon-settings.triggers
@@ -0,0 +1,2 @@
+interest-noawait /usr/bin/qemu-arm-static
+interest-noawait /usr/sbin/update-binfmts