• Networking: reqwest, tungstenite, UdpSocket, TcpStream/TcpListener, actix
• Storage: sqlx, rocksdb, surrealdb
• UI: tauri, druid, slint, egui/eframe
• Game/Simulation bevy
• Systems: windows.rs (GDI, OpenGL, D3D), JNI, Mono, Detours

Build fast, low-level tools and become a highly capable Rust developer.