We'll design and implement a complete actor framework in Rust from scratch — no external actor libraries, just async Rust primitives. Starting with the fundamental Actor trait, we'll progressively build a runtime, mailbox, context, address system, and event/interrupt/request-response patterns.
Along the way we'll explore key concurrency patterns: message passing via channels, trait-based polymorphism with async_trait, type-erased envelopes, lifecycle management with watch channels, and the Future trait for custom awaitable types. By the end, our framework supports fire-and-forget events, graceful interruption, and strongly-typed request-response interactions with a Calculator example to prove it all works.
