Open-source protocol.
Features expected for a messaging solution in 2024 (multi-devices management, emojis, integrations, redaction, spaces, ...).
Multi-platforms clients (Android, iOS and Webclient).
SDK available for each platform and a new Rust sdk supporting all the previously listed platforms.
Conference stack (Element Call).
End-to-end encryption.
Federation management.
Capability to host all the back-end infrastructure by ourself.

Front-end

First, the project involves writing a client compatible with the Matrix.org (client-server API) protocol.

Even if the Rust SDK is still in beta, it seems to be the future one (cf. Element X - experience the future of Element!) and a good choice for someone starting a new client... from my point of vue.

The SDK choosen, a Rust (to avoid to use the bindings provided by the matrix-rust-sdk and mostly because I want to learn Rust) graphical library should be selected. The Dioxus one seems to do the job:

React-inspired library for Rust.
Multi-platforms (use of Webview or WGPU-enabled renderers).

TODO

Design system ?
Implement MSN messenger features using Matrix.org sdk...