Yes, the good ol' org-mode. I also consider it the core killer feature of emacs. However I found it doesn't match into all my processes. A text editor you can d

Yes, the good ol' org-mode. I also consider it the core killer feature of emacs. However I found it doesn't match into all my processes. A text editor you can drop into different kinds of work processes. But a whole engine that uses formatted files as data storage is different. With emacs and org-mode the whole thinking is inside emacs. that's fine if you want to use it for everything. But if you just want to use org-mode and drop it into different contexts it fails. It's still great tho, no criticism intended.