I usually despise comments that point out that two pieces of (almost always unrelated) software share the same (or a similar) name. That doesn't apply in this case—

Chandler has not only already been used for another piece of software, it has been used for something in what is roughly the same space. The other Chandler was discontinued >10 years ago, but I had to double check and triple check to suss out whether or not your Chandler is actually a reboot + a rewrite. And I'm still hedging (but I think the answer is "no, they're completely separate"). That's a confusing amount of similarity.

EDIT: it looks like this has been pointed out. Even though it's "just" a codename, I'd recommend changing it to something like "chauncey" or "bingaling" or "miss-bong" or "skidmark" or something.