Hi Philip!
I've just answered that issue. The plugin now works for the two versions of OJS/OPS* supported by PKP: 3.3 and 3.4.
We have Scielo Preprints (OPS) as the main user - Scielo is the one who funded the development of this plugin for OJS 3.x and has provided us with fundamental guidance and feedback - and we have supported some Brazilian journals, which in general are in the initial phase of receiving research data, or are still adapting to receive research data.
We are uploading the plugin to the gallery to facilitate its installation and dissemination. We are keeping the installation and configuration instructions up to date at
https://github.com/lepidus/dataversePlugin.
We expect its use to grow significantly in the coming months.
*We haven't yet received feedback from OPS 3.4 users.
Thanks,
Diego