• Currently: Working with PrimeIQ.ai
• Interests: Baseball & sports analytics
• Education: Boston University
• Location: San Francisco Bay Area
• Connect: linkedin.com/in/harlanljones

Active cohort on MLB active rosters today (2): Patrick Wisdom (TEX), Cameron Weston (BAL)

Historical index contains 73 total Major League Baseball players born on August 27.

• bayes-horizon: Integrated wire Tailwind build into prerender pipeline and deployed rebuild forecast surface on locked world with macroeconomic data provenance testing.
• urban-signal: Expanded real-time spatio-temporal telemetry streams across 11+ major metros (Austin, Boise, San Jose, Tampa, and 7 other metros) and built dynamic cross-region comparison analytics.
• film-lab: Engineered lighthouse integration for CI and implemented deploy verification and analytics.

• urban-signal — Real-time spatio-temporal forecasting engine using Apache Kafka, Uber H3 grids, and ST-GNN/LightGBM ensembles to predict hyper-local property appreciation and commercial catalysts ahead of market comps.

• herdr-outpost — Lightweight, secure remote dashboard and relay gateway for Herdr AI coding agent workspaces, featuring mTLS encryption, VAPID authentication, and Cloudflare Workers integration.

• scheme-db — Interactive NFL scheme engineering workstation that animates 80 plays across 20 offensive & defensive systems with Catmull-Rom spline interpolation, 0.0s–1.2s disguise mesh analysis, and coaching lineage trees.

• omarchy-agents — Dashboards and bar widgets for tracking AI coding-agent usage on Omarchy, with a local-first Bun + Hono + React + SQLite web console plus QML bar widgets ranking token usage across local agents.

• clify — Metric-Driven Agent-Driven Development (ADD) framework implementing a Turborepo monorepo with two complementary products: cliamp-clify (Go TUI music player with Spotify superpowers) and clify (Python CLI with ADD-orchestrated agent framework). Features deterministic SLAs on every execution (latency ≤ 2.5s, cost ≤ $0.02, confidence ≥ 0.90), semantic scope guardrails, and runtime telemetry monitoring with three-stage TDD lifecycle verification.

• arbkit — Cross-venue sports & prediction market arbitrage detector and execution simulator in pure Rust, featuring a zero-allocation lock-free SPSC hot loop (p99 < 250ns) ingesting Kalshi & Polymarket feeds in real-time.

• bayes-horizon — S&P 500 long-term ML projection engine using Bayesian hierarchical modeling, walk-forward cross-validation, and point-in-time macroeconomic data (FRB, BLS, CBO, Shiller).

• baseball-dashboard — Live MLB scoreboard and game-day research dashboard with sabermetric matchup stats, ballpark weather, bullpen workload, and optional player props.

• seismic-ml — Spatiotemporal ML pipeline for short-term earthquake forecasting, predicting M ≥ 4.5 events within a 7-day window from 30-day seismic precursor features. Trains a Keras MLP on the USGS catalog (83k+ events) with strict walk-forward splits and leakage-asserting tests, tuned for an RTX 4070 Ti via mixed precision and XLA.

• march-madness — PyTorch deep learning tournament prediction and Monte Carlo bracket simulation engine (BracketNet) trained on 23 matchup differential features and Kaggle historical data.

• aegis — AEGIS‑Thermal: agent-based co‑optimization of battery (BESS) & thermal (TES) storage. Recent work includes g1.5 end-to-end integration demo (negotiation→mandate→dispatch→sensed actuation→receipt) + archived record and w1.4: telemetry baseline demo on live sim (5 families, snapshot TSV) + fault-injection schedule doc (G1.4), built with Rust.

• dotfiles-showcase — Local-first web app to visualize and explore chezmoi dotfiles with live config previews and mini-demos. Recent work includes detailed fallback content strategy and sanitization rules and comprehensive ANSI and theme handling, built with TypeScript and CSS3.

• linear-bucket — Sync and group Linear issues into configurable “buckets” for reporting and workflow automation. Built with Python.

• dotfiles — The dotfiles I use. Recent work includes settings and keymaps for better git integration and separate template execution and apply steps, built with Go Templates and Shell.

• gan-enhanced-pneumonia-classifier — Enhancing Pneumonia Detection with GAN-Generated Synthetic Chest X-rays. Recent work includes new Grad-CAM visualizations for real and synthetic images, enhancing analysis results with additional insights, built with Python.

• ferrite-db — An embedded Rust library for low-latency approximate nearest-neighbor search over dense vector embeddings. Synchronous, blocking API with library-owned parallelism; designed for direct in-process integration without n... Recent work includes wASM bindings for Ferrite DB's in-memory vector engine and reproducible synthetic corpus generator for Ferrite DB benchmark, built with Rust and TypeScript.

• chacha20-avx2 — Active development focused on constant-time tail/scalar fallback path and ratify D1 — Poly1305 accumulator radix = 2^64 (HJ-319), built with C.

• film-lab — Active development focused on deploy verification and analytics and cI/CD for production and PR previews, built with TypeScript and JavaScript.

• web-backends — Active development focused on benchmark infrastructure and Go + Gin reference implementation, built with Shell and Go.