Toki Pona is a constructed language with only about a 120 words. This keyboard introduces a pinyin style keyboard to type in an emoji script. The typing is in the roman script, but as a Toki Pona word is entered it is replaced by the appropriate emoji. Learn more about the Toki Pona Sitelen Emoji here: https://sites.google.com/view/sitelenemoji/home

In short, Sitelen Emoji is a democratically chosen set of emoji for each Toki Pona word. There are easy transliteration tools like this one that the community uses to write in Sitelen Emoji.