Phew, there are so many files and lines in that repo.

As far as I understand it, all that has to be done is something like:

    document.body.innerHTML.replace(/<some_regex>/,'<some_string>')

Where <some_regex> matches strings of type

    @[email protected]

and '<some_string>' turns that into

    <a href=https://yourinstance/web/@[email protected]>@[email protected]</a>