Actually it's pretty developed! See:

https://cooperationjackson.org/

https://cooperationhumboldt.com/

https://ebprec.org/

https://blacksocialists.us/dual-power-map

https://www.symbiosis-revolution.org/

https://kolanutcollab.org/

https://twitter.com/Symbiosis_PDX

https://www.cooperationvermont.org/

https://www.cooperationbuffalo.org/

https://mutualaidnetwork.org/

and a good deal of these:

https://neweconomy.net/

and these:

https://mutualaiddisasterrelief.org/co-conspirators/