But, given Axoloti is open source, is it not more 'efficient' to use the effort to help improve the existing editor in the axoloti UI?
( still lots of room for improvements)
Personally I use the object editor of the axo patcher for most editing. since it's integrated into patching/testing. I can't see why I'd change that.
On the rare occasions I edit externally, it's because I want to edit the raw text , using my favourite code editor. (Sublime)
Is there something specifically you don't like about the object editor? And why you would prefer a new/different external editor?
Anyway just my personal thoughts, good luck with your project - it's good to see off shoot projects, choice is always good