是否可以更新macOS表情符号键盘（以使用所有表情符号）

Following this question, I have obtained and installed macOS Mojave's Apple Color Emoji.ttc on macOS Sierra. While I can now see these emojis if I'm texted them, they don't show up on my emoji keyboard (even when placed in /System/Library/Fonts/) 该问题的答案之一提...