Bundle a package from apt with a snap

Thank you!

After following the link your linked snapcraft.yaml
I changed the apps part of the snapcraft.yaml to:

apps:
  dakanji:  
    command: desktop-launch $SNAP/src/dakanji
    extensions:
      - kde-neon
    plugs:
      - home
      - opengl
      - network
      - network-bind
      - pulseaudio

Now I hit a different error:

python3: relocation error: /snap/dakanji/x1/kf5/usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/Controls.2/libqtquickcontrols2plugin.so: symbol _ZN13QQmlDirParserC1Ev version Qt_5_PRIVATE_API not defined in file libQt5Qml.so.5 with link time reference

This error does not help me at all.
Do you have an idea how to resolve this?