Hey there fellow indiehacker!
If you're a WhatsApp Web and Instagram Web user then you have probably wanted to use the ":" shortcut for emojis from WhatsApp on Instagram Web Direct Messages, but there's no such built-in functionality.
But I've built a browser extension which allows you to do just that!
I'm now looking for the first people to try it out and get some feedback.
Are you interested? Message me on Twitter!