And building a consistent good experience from isolated tools is even harder. The problem is just hard and I think good criteria with the super app approach is the way to go.

I really like Spacemacs. It's discoverable, extendable, quite consistent.

> And building a consistent good experience from isolated tools is even harder.

Yes, I agree, which is why my tmux slowly devours my numerous small utility apps into itself! I haven't tried Spacemacs yet, too Vim-pilled at the moment..