What it is 

• Type-safe calls (Result<_, JsValue> instead of unpredictable exceptions).
• Full UI control (MainButton, secondary buttons, alerts, expand/close, theme handling).
• Sending data back to the bot (send_data) and accessing environment parameters.
• WASM build powered by wasm-bindgen/web-sys.
• Optional adapters for Yew and Leptos.

What’s coming in v0.1.0 

• Core WebApp API coverage with robust error handling.
• Predictable signatures: no unwrap/expect, no panics.
• Feature flags for Yew and Leptos integration.
• Demo app (Dev Menu for quickly testing functionality).
• MSRV: 1.89, edition: 2024.
• Dual license: MIT or Apache-2.0.
  
  

• Why Rust for Mini Apps 

  • Safety & reliability. Strong typing and compile-time checks, fewer runtime surprises.
  • Performance. WebAssembly provides fast startup and predictable resources.
  • Ecosystem. Direct interop with web-sys, wasm-bindgen, plus modern frameworks like Yew/Leptos.

Roadmap 

• 0.1.x: expand examples, polish error handling, improve logging.
• 0.2: more utilities (init helpers, environment checks, events, theming), richer Yew/Leptos examples.
• Docs: migration guides from JS, best practices for structuring Rust+WASM Mini Apps.

Get involved

• File issues and feature requests in the repo
  
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• Thanks 

• Big thanks to everyone testing the demo, reporting bugs, and contributing fixes. The release is just around the corner — writing Telegram Mini Apps in Rust + WASM is about to get a lot smoother.