Re:Delta Chat – WhatsApp Like Messenger over IMAP
by olivier-tille on Thursday February 28, 2019 @03:10AM
(#19269826)
Exactly, that's what I was told yesterday as well. They're collaborating on https://github.com/deltachat/deltachat-core
"We are cooperating with Delta.Chat for it to also use COI to provide more features, we are contributing to the C-Kernel of it."