Orch8

Oleksii Vasylenko Tecnologia LTDA's young Rust workflow engine for durable JSON-defined sequences, with SQLite for local/embedded use and PostgreSQL for servers. It includes first-class loop, router, LLM, tool-call, recovery, and human-review blocks plus a hosted Orch8 Cloud. The engine is BUSL-1.1, not OSI open source: production use is allowed unless it competes with Orch8's hosted or embedded products, and each version converts to Apache-2.0 after four years. Its own historical security notes disclose remaining design-level work around tenant-scoped scheduling, DNS-rebinding exposure, expression/template depth limits, and publisher HTTPS enforcement, so production self-hosting still deserves an independent threat review.