Mitch Effendi (ميتش أفندي)IM clients that use S3 OBJ storage are an absolutely genius idea. It's a fully encrypted, highly available chat client with a protocol-level server implementation. Egress for most S3 providers is usually cheap as fuck or free, and some of these apps use automatically keying PGP to make it work using plaintext files.
Try one here: https://cweb.gitlab.io/StoneAge.html
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