I wrote "Building an #Asynchronous, Internet-Optional Instant Messaging System" today. It suggests using #DeltaChat (@delta) across an #email system that can run on non-IP networks to achieve #IM coverage without having to have an Internet backbone, using things like #NNCP, #Syncthing, #Filespooler, and such. I love the ways we can combine interesting tools like this!
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