It seems by the way that emote is available via snap, as much as I'm not fond of using snap packages installing it does work out of the box.
Code: Select all
snap install emote
In case the textfield doesn't work (for example in the terminal it doesn't) you can still insert the emoji by using CTRL+SHIFT+V or whatever is the paste key combination for that app. Emote does copy the emoji in the clipboard automatically when is selected.