Comparison matrix
Six systems, one scanning surface.
| Project | Domain | Frontend | Backend | Database | Key concepts | Architecture pattern |
|---|---|---|---|---|---|---|
| Engram active | AI infrastructure | Next.js | FastAPI, TypeScript MCP, Provider adapters | PostgreSQL 16 with pgvector | Vector EmbeddingspgvectorLLM Proxy PatternModel Context Protocol | Proxy API -> Memory store -> Agent tool layer -> Developer console -> Provider adapter layer -> Audit and observability layer |
| EquityFlow active | Trading platform | Next.js, TypeScript | FastAPI, Server-Sent Events | Backend state and local browser persistence | Paper TradingServer-Sent EventsContract-Aware ExecutionMark-to-Market | Trading terminal -> Market data layer -> Execution layer -> Portfolio layer -> Provider resilience layer -> Risk and strategy layer -> Terminal command layer |
| GridPulse active | Motorsport analytics | React | FastAPI, Python | Processed telemetry cache | Time-Series ProcessingD3 Data BindingTelemetry AnalysisRace Replay | Ingestion layer -> Processing layer -> API layer -> Visualization layer -> FastF1 session layer -> Replay normalization layer -> Client replay cache layer |
| NeuroAssess ongoing | Healthcare ML | Python, Flask | Model artifact and local medical document store | Transformer ArchitectureSelf-AttentionBinary ClassificationSensitivity and Specificity | Clinical input layer -> Inference API layer -> ML pipeline layer -> Report layer -> Training orchestration layer -> Knowledge retrieval layer -> Digital twin layer | |
| Occasio completed | Event commerce | React, Vite | Node.js, Express, Upload middleware | Document or relational event booking store | Event-Driven ArchitecturePayment WebhooksQR TicketingRole-Based Access Control | Attendee experience -> Organizer console -> Backend API -> Commerce and verification -> Registration lifecycle layer -> Organizer operations layer -> Asset and document layer |
| Sentinel active | Financial simulation | Next.js, TypeScript | Python, FastAPI | In-memory simulation state | Limit Order BookPrice-Time PriorityMulti-Agent SystemsLiquidity Shock | Visualization layer -> Simulation API layer -> Market engine layer -> Agent intelligence layer -> Realtime transport layer -> Policy experimentation layer |