Self-hosted engine for running stateful workflows as persistent actors. Deploy new versions while actors are live — each one routes to the correct version based on its event history, not just its current state. No migration scripts. No downtime.
nodejs postgres state-machine zero-downtime sqlite workflow-engine actor-model self-hosted statecharts ai-agents xstate lean4 live-migration durable-execution long-running-workflows workflow-versioning event-sourcing-alternative
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Updated
Nov 8, 2026 - JavaScript