Some emojis missing when running app in snap

Here’s the same emoji when running the app locally:

Screenshot%20from%202020-04-17%2014-56-04

and inside a snap:

Screenshot%20from%202020-04-17%2014-55-40

Is there something I need to do to get the same emojis when running inside the snap? Do I somehow need to bundle the font?

My host system is Pop!_OS 19.10. Here’s my snapcraft.yaml for reference - https://github.com/tom-james-watson/Emote/blob/master/snap/snapcraft.yaml

A user on Manjaro appears to see no emojis at all - https://github.com/tom-james-watson/Emote/issues/4

I assume I need to bundle a font into the snap, but I’m not sure how to do that. Any pointers?

Thanks!

Was this ever solved?