[mattl]

The Deck was one such network. https://digiday.com/media/low-tech-ad-network-deck-ad-blocki...

I tried to get a similar thing started for free software and it ran for a while https://www.fsf.org/news/ad-bard

[dcbadacd]

But now there isn't anything available?

[mattl]

I'm not aware of one but I'm no longer in an environment where I keep tabs on things like that.