This is an interesting project but a poorly chosen name because it can easily be considered trademark infringement for being confusingly-similar to "Redis", especially since it's a self-admitted clone. I would change it now before you are forced to change your name and you lose time confusing people and wasting time renaming everything.
I don't think it's particularly confusing. I wouldn't expect something official to have a name that changes the first letter. Would you honestly be confused about whether a search engine called Boogle, a laptop called a Yacbook, or a browser called Tirefox was an official product by Google, Apple, or Mozilla?