Was github ever fun? It’s a tool, not a toy. I don’t expect my IDE to be fun either, I expect it to accomplish a task for me.
Why do something especially do something for majority of your life and not make it fun?
I would strenuously resist any attempt to make any of my tools more fun at the cost of any ounce of productivity. These tools exist to serve the narrow needs of professionals, focusing on anything other than utility for the core group is counter productive.