Workflow Automation Builder (Visual Drag‑and‑Drop)

Product: A low‑code web app where users connect APIs, triggers, and actions (like Zapier but self‑hosted). Includes AI features: natural language to workflow, anomaly detection in runs, and cost optimization suggestions.

Features:

Distributed task execution with retries, dead‑letter queues, and idempotency.

Visual debugging with time‑travel replay of each step.

Dynamic rate limiting based on downstream API health.

Tech stack: Next.js, React Flow, Node.js, BullMQ, PostgreSQL, Redis, Tailwind.