I don’t get the title.

It’s a lifesaver for when the only useful search result leads to reddit.

Definitely check out the Hidden functionality part of the readme (it’s also in this post’s body)

Emoji search is planned and for now, you can add additional dictionary for emoji suggestions in the top bar. Here’s how

https://github.com/Helium314/HeliBoard#faq--common-issues

You can add special emoji suggestion dictionary, so emojis come up in the top row as you type.