Recent additions¶

Edited when I add something worth mentioning — not a git log.

September 2026¶

• Reworked the home and projects pages.
• Glitch Observatory is under Just for Fun (old URL redirects).

February 2026¶

Diagrams & tooling¶

• SVG Workflow Generation Best Practices — Mermaid-first, artifact-driven approach to committed SVG diagrams: diagram-as-code principles, rendering workflow, CI checks, and a data platform example.

• Mermaid → SVG Workflow Pipeline (Tutorial) — Set up @mermaid-js/mermaid-cli, render .mmd sources to .svg, and embed figures in static documentation. Includes troubleshooting for font, viewBox, and Puppeteer issues.

• Layered Systems Diagrams: Mermaid → SVG — Context and workflow diagrams for an IoT → MQTT → lakehouse example, from source through rendered SVG.

Reader guides¶

• Architectural Compass — Problem-oriented paths for embedded systems, data pipelines, microservices, ML, geospatial, and infrastructure.

• Reading Tracks — Curated sequences: Modern Data Architecture, Distributed Systems & Scale, Embedded Systems, Observability & Operations, Infrastructure Economics, and Spatial Systems.

• Decision Frameworks — Summaries from nine deep dives: Kubernetes, Microservices, Serverless, Real-Time, Storage, Analytical Systems, Metadata Governance, ML Deployment, GPU Infrastructure, and Spatial Architecture.

• Anti-Patterns Index — Premature Microservices, Overusing Kubernetes, Real-Time by Default, Data Swamp Formation, Serverless Cargo Cult, and Distributed Systems for Small Teams.

• Systems engineering principles — Restraint, economics, determinism, governance, and discipline as design lenses.

• Systems Thinking Glossary — Control plane, data plane, abstraction debt, blast radius, data gravity, and related terms.

New deep dives¶

• Why Most Kubernetes Clusters Shouldn't Exist — Orchestration overhead, etcd fragility, networking complexity, organizational maturity requirements, and the portability illusion. (Themes: Infrastructure · Architecture · Economics)

• The End of the Data Warehouse? — Lakehouse convergence, open table formats, DuckDB compute fragmentation, governance implications, and a tiered decision framework. (Themes: Data Architecture · Economics · Ecosystem)

• The Economics of GPU Infrastructure — Utilization patterns, interconnect economics, training vs inference cost structures, and a buy-vs-rent decision matrix. (Themes: Infrastructure · Economics · ML Systems)

• The Myth of Serverless Simplicity — Cold starts, IAM explosion, observability fragmentation, vendor lock-in, and per-invocation economics at scale. (Themes: Infrastructure · Economics · Architecture)

• Why Most ML Systems Fail in Production — Training/serving mismatch, data drift, feature skew, silent degradation, and when heuristics are the right choice. (Themes: Data Architecture · Organizational · Economics)

• The Physics of Storage Systems — HDD through NVMe through object storage, IO amplification, throughput vs IOPS, and a storage tier decision framework. (Themes: Storage · Infrastructure · Economics)

• The Operational Geometry of Spatial Systems — Quadtree vs R-tree vs H3, COG vs GeoParquet, H3 partitioning, routing graph vs raster cost surfaces. (Themes: Spatial · Architecture · Data Formats)

• The Hidden Cost of Metadata Debt — Catalog drift, control plane collapse, duplicate pipelines, compliance failure, and progressive enforcement. (Themes: Governance · Data Architecture · Economics)

Recursive Cathedral Generator (Kotlin + Processing)¶

• Recursive Cathedral Generator — Grow Gothic cathedral silhouettes from recursive L-system rules. Deterministic seeds, bilateral symmetry, exportable PNG frames.

• Pi-Based Sample Library Server with Live Audition — Raspberry Pi sample server with SQLite indexing, Nginx, FastAPI, WebAudio API, and USB MIDI live audition.

Late 2025¶

• Vibe → Agentic LLMs — Moving from prompt experimentation to production-grade agentic LLM architectures.

• Fractal Art Explorer (JavaScript) — Real-time Mandelbrot/Julia explorer with GPU acceleration, custom palettes, and orbit traps.

• OSC + MQTT + Prometheus + SuperCollider — Wire Prometheus exporters into SuperCollider via OSC for live data sonification.

• MCP + FastAPI Full Stack — Model Context Protocol integrated with FastAPI for production LLM toolchains.

• Cross-Domain Identity Federation — Unified identity federation architecture across system layers and environments.

• Environment Promotion Drift Governance — Controlled environment promotion with drift prevention and release channel management.

• Data Quality SLA Validation — Data quality governance with SLAs and multi-layer validation for tabular, geospatial, and ML data.

Mid 2025¶

• IAM & RBAC Governance — Identity and access management across heterogeneous stacks.

• Release Management & Progressive Delivery — Safe deployment strategies across applications, databases, data pipelines, and ML systems.

• Holistic Capacity Planning — Workload modeling, scaling economics, and resource prediction frameworks.

• ONNX Browser Inference — Run ML models in the browser with ONNX Runtime Web.

• RKE2 on Raspberry Pi Farm — Kubernetes cluster on ARM hardware.

• PostGIS Geometry Indexing — Spatial index strategies, operator classes, and query plans for production PostGIS.