There was a time between emoji support and emoji integration on with Mac OSX. A bleak time, when typing an emoji took over 6 seconds.
I developed and released a keyboard language plugin that allowed users to toggle and type in emojis without searching into a hidden nested character palette. This brought down the switch from language to modern pictogram down to 0.2 seconds. It's mostly obsolete now, but I still use it every day for the quickest 'mojis in the West.