Blanking on a term. I remember a protocol/firmware for wireless routers where the idea was to connect as many as possible to create a quasi internet without any ISPs. Help?

Basically title. I remember reading about it back in like 2018, I even remember a company that would provide crypto based on the amount of traffic you let through. Just curious if that ever saw any growth.

Everything I google keeps bringing up things on the darkweb. The goal of this was explicitly to go "ISP-less". Like they envisioned mesh net covering giant swathes of space.