Alchemy adds Rivet, Effect actor frameworks

Cloudflare Durable Objects popularized edge actors, but vendor lock-in has hampered teams needing multi-cloud portability for persistent agent workflows. By turning runtime placement into a swappable Effect layer, Alchemy lets developers build stateful actor services once and target dedicated runtimes or self-hosted clusters without rewriting domain logic.

• –**Portability over lock-in**: Teams can move stateful domain models off Cloudflare Durable Objects to Rivet or Effect Cluster on AWS, GCP, Fly, Hetzner, or Kubernetes by switching a single dependency injection Layer.
• –**Unified actor abstractions**: Live state updates and watch events automatically stream over WebSockets across all supported backends, preserving real-time reactivity without custom synchronization code.
• –**First-class agent sandboxes**: Standardized interfaces across six sandbox providers (E2B, Daytona, Modal, Archil, Boat, and AWS ECS Nitro Sandboxes) simplify running untrusted agent-generated code across different cloud environments.
• –**Type-safe infrastructure evolution**: Integrating IaC directly into TypeScript with Effect delivers declarative actor topologies, zero-config local emulation, and compile-time verification across distributed systems.