DevOps isn't exactly an ancient field. I know you said you're already junior heavy but even if building someone up takes you six months you're going to likely be better off in the meantime than trying to find someone able to produce the value you need from day one.
My employer is also having trouble attracting senior frontend devs right now and our take seems to be that there's a lot of competition for good candidates, that's unlikely to change in the short term.
EDIT: Not to doom, but times are changing, might be worth evaluating if you really do NEED a senior. A lot of the way people look at used cars, and housing, (and gas prices), and remote work has changed in the past few years. Maybe easily acquiring senior devs is something that is also changing.
Seems like an opportunity for a carseat product that sends your phone a push notification when you get out of range if it detects a child in the carseat.
I am largely ignorant to license law so forgive this probably basic question
If the idea of public domain is clearly established in law should it not be enough to have a license file that simply reads.
Everything in this repository is public domain, all contributions to this repository are public domain.
Obviously if someone were to submit code stolen from a project under another license it would create an issue. But the same could be said for any project.
https://store.steampowered.com/hwsurvey/Steam-Hardware-Softw...
Looks like linux barely beats out macos