Sylarion Development Log - Session 003

Continuing the build of Sylarion, an intelligent opportunity-management system being developed under Quantum Arcane. This session documents the actual development environment and implementation work as Sylarion begins moving from architecture into functioning software. Work documented in this session: FastAPI lead creation and retrieval PostgreSQL persistence SQLAlchemy database integration Lead and LeadEvent domain models lead_created event generation Lead event-history retrieval API testing and database verification Git checkpoints throughout development Current architecture: FastAPI → SQLAlchemy → PostgreSQL Current product milestone: Building toward the Sylarion Heartbeat: Signal → Context → Decision → Action → Outcome → Economic Value → Learning This footage has been accelerated to approximately 11.17× its original speed. It is intended as a development record rather than a step-by-step programming tutorial. Sylarion is a Quantum Arcane product. Build status at end of session: Sylarion can receive and persist a lead, create an associated event record, retrieve the lead, and retrieve that lead's event history. © 2026 Quantum Arcane. Development archive.