Šepot — end-to-end encrypted messenger

Initial public release. Anonymous on-device identity (no phone number,
e-mail, or password), Signal-protocol cryptography (X3DH + PQXDH, Double
Ratchet, sealed sender) via libsignal, a metadata-minimizing relay,
group chats, disappearing messages, encrypted local storage, optional
Tor transport, and a UI localized into Czech, English, German, Russian,
and Italian.

Monorepo: Flutter client (app/), Rust relay + wire types (rust/),
protobuf definitions (proto/), self-host deploy (deploy/).

Licensed under AGPL-3.0 with an app-store distribution exception (§7).

rust/sepot-proto/build.rs

@@ -0,0 +1,4 @@
+fn main() -> std::io::Result<()> {
+    println!("cargo:rerun-if-changed=../../proto/sepot.proto");
+    prost_build::compile_protos(&["../../proto/sepot.proto"], &["../../proto"])
+}