Delta Chat (npub17gp…nrxn)
Oh, and there is a "Mutual Help" Group:
https://i.delta.chat/#14E1CF3601621EC806784CB13B57DB199F5BD213&v=3&x=EseeyKrAbWfOSTf_BZrn4Uan&i=3vkHatEHu-Bgv0ouYxyhrDkz&s=NwcnRaW87188aMy-TQfiBpHb&a=caretaker%40tarpit.fun&n=Caretaker&g=Chatmail+Mutual+Help