Project is still existing and maintained but have moved from GitHub to https://gitlab/marsat/CTparental because of the acquisition of GitHub by Microsoft.
https://framagit.org/marsat/CTparental is backup!
today, the first unofficial package for CTparental Solus downloadable on the official https://gitlab.com/marsat/CTparental/tags/4.25.3m of ctparental, framagit it's only a copy of the sources.
Wait for this task to be *accepted for inclusion* and then you can send your patches (rundeps included). More information here: https://solus-project.com/articles/packaging/submitting-a-package/en/
As this task has been marked Needs Maintainer for a month with nobody having stepped up to become maintainer, in addition to providing an acceptable patch for inclusion, marking as WONTFIX. Feel free to re-open when a patch has been submitted via the proper processes.