The nholstein repo clearly states: This repository temporarily unmaintained.
And the slicer69 project has had some insecure code added in the past: https://xn--1xa.duncano.de/slicer69-doas.html
The awesome-openbsd repo only links to the Duncaen OpenDoas repo: https://github.com/Duncaen/OpenDoas
Ouch... surely no distribution would package this garbage, right?