Not only Elisp is strongly rooted in Emacs-specific capabilities, such that you can't just lift code for e.g. Android apps. But Org-mode also doubles down on us

Not only Elisp is strongly rooted in Emacs-specific capabilities, such that you can't just lift code for e.g. Android apps. But Org-mode also doubles down on using Emacs' text manipulation features while leaking them everywhere, instead of providing an API layer―so additions to Org-mode are actually Emacs text-wrangling scripts with just a few helper functions from Org. Resolving either of these problems would help, though the first one affects way more than just Org, and I'm not sure to what extent avoiding the second one is possible.