org-remark VS org-special-block-extras

I use something similar, called org-remark. By the description of both, they seem to share functionalities. Just mentioning it for visibility :)

org-remark hits some of your requests, but I think lacks the git parts in point 3.

https://github.com/nobiot/org-remark might also work

There is also Org-remark, which lets you highlight and annotate any text file using Org-mode.

Also if you're annotating plain text, org-remark is great. I love not having to use the mouse to select text.

What happens when line number changes? For example https://github.com/nobiot/org-remark handles this changes, but can only anotate org-mode files

Org-Remark, for plain text files perhaps.

you might want to try out org remark

Emphasis syntax is currently fixed. There is https://github.com/alhassy/org-special-block-extras/ though. And there were discussions about custom markup elements.

You may also take a look at https://github.com/alhassy/org-special-block-extras

I've been using org-special-block-extras to insert special blocks in org-mode which I then export to PDF through LaTeX, things such as margin notes or colored blocks.

This, among other things, is part of the v4 release of org-special-block-extras ---sadly I haven't yet gotten around to making a proper changelog or updating existing docs.

I opened an issue on github btw.

This is very similar to org-special-block-extras' doc feature, where one "documents" something in an associated file and the documentation is shown in a tooltip in Emacs and in a tooltip in HTML export and in a glossary in LaTeX export. But yours seems to be much more sophisticated by linking implicitly, whereas this requires an explicit link. Way to go ;-)

I'm excited to announced that version 2 of org-special-block-extras is out :-)

Thanks for the links tdehaeze :-) When I replied to you earlier, it didn't occur to me to just actually use the `defblock` mechanism to do what you wanted. A ~3line implementation that works well for me can be found here: https://github.com/alhassy/org-special-block-extras#Installation-Instructions. All the best!