I'm mourning on two graves every time I'm tuning my Org-mode workflow. First, that Emacs had to have its own language so I can't take my code and run it in an up-to-date and stable vm embedded in an Android app. Second, that additions and modifications to Org-mode tend to use Emacs' text juggling here and there instead of a higher-level Org API and string functions—so even if I had an embedded Elisp, I'd need to implement half of Emacs.

Emacs' flirt with Guile promised to mend one of those ailments—especially considering how on my oldish machine Emacs' GC hiccups every few seconds when just scrolling through an outline, and Emacs internals don't seem to get lots of low-level development these days (understandably, but still). Alas, that hope now has a grave of its own.