I went here to get started:
https://foldingathome.org/start-folding/
and started running the client, but...
* The fahcontrol DEB package is not compatible with Debian 10 / Devuan 3.
* There is no APT repository.
I'm willing to do folding@home, but not take-care-of-their-devops-issues@home.
Edit: Apparently, indeed, the folding@home work I would be doing doesn't have much in particular to do with covid-19. I feel a bit cheated here.