I guess this
http://kitchingroup.cheme.cmu.edu/blog/2016/11/04/New-link-features-in-org-9/
will show you most of what you need to make new links.
 org-link-set-parameters Also makes new links.

On Fri, Mar 22, 2019 at 7:37 AM Eric S Fraga <esflists@gmail.com> wrote:

> I am going down a rabbit hole here...
>
> Short question: how can I add a new link type to org?  It used to be
> that we would use ~org-add-link-type~ but this is
> deprecated.  Fine.  The documentation points to
> ~org-link-set-parameters~ instead but this can only set the parameters
> for known links.  Known links seem to be defined by a complex regex in
> ~org-link-types-re~.
>
> What is the replacement for ~org-add-link-type~ in the latest version of
> org, if any?  Or do I have to both add to the regex and set link
> parameters separately?
>
> Thank you!
> --
> Eric S Fraga via Emacs 27.0.50, Org release_9.2.2-324-gd58827
>
> --
John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
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412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu