So I just said "do it" and have been merging everything without reading a single line. It wrote all the specs, wrote all the code, wrote all the tests. I just got it to write out a tutorial to take me on a tour of the code it wrote, but I haven't reviewed it yet.
I will push it as OSS once I've made sure it hasn't included anything that I don't want public. But it wouldn't be super useable for anyone else since many of the features (e.g fuzzel and broot) are glue that exists in the Sway configs and some helper scripts.
It's held together by bubble gum and scotch tape. But is does exactly what I want and so far without a single bug, crash or problem. It's my frankenstien editor and I love it. (disclosure: I've been using it for less than a week)
It's obviously not for everyone, but if you fork that repo and prompt your favorite model to make it look and feel like you want, you can get something extremely useful very fast.