It's in texi. E.g. doc/org.texi. There's a dated version of theLawrence Bottorff <borgauf@gmail.com> writes:
> I'd like a copy of the documentation (short, long manuals) in their
> original .org format. Where can I find them? My first logical guess was to
> get the org distribution. But /doc/ doesn't seem to have them as .org files.
org-manual written in Org on github.
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