Futures & Async Runtime
In-depth technical breakdown of Rust async: the Future trait, Pin/Unpin, wakers, state-machine desugaring, the tokio runtime, and work-stealing scheduling.
Multithread Primitives
Comprehensive guide to Rust concurrency primitives: Mutex, RwLock, mpsc channels, Arc, atomics, Condvar, Barrier, OnceLock, tokio sync variants, and crossbeam.