Index: debian/plasma-discover-flatpak-backend.postinst
===================================================================
--- /dev/null
+++ debian/plasma-discover-flatpak-backend.postinst
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+. /usr/share/debconf/confmodule
+
+# Add the flathub repo by default to give a better out of the box experience
+# akin to what we offer with snap. flathub is the kinda defacto place to put
+# your flatpaks, so having it enabled by default seems like a useful way to
+# increase availablability of flatpaks. Ackd by discover maintainer and
+# neon devs.
+# https://phabricator.kde.org/T9731
+#    -> Don't fail the postinst if this fails, it's not a strict requirement.
+flatpak remote-add --system --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo || true
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0