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ron2k1/README.md

Data Science major, Statistics minor -- Rutgers University, New Brunswick.

I build systems where models meet infrastructure. Python for the modeling, Rust for the hot path, local LLMs for the reasoning layer. Most of what is below runs on my own hardware with no paid API in the loop.

ron2k1.github.io · LinkedIn

Jump to  Selected work  ·  Hackathons  ·  Open source  ·  In private  ·  Stack


Selected work

Tip

Each project leads with the pitch. Click Implementation to expand the internals.

Cross-platform reaper for orphan Claude Code process trees. Kernel-enforced cleanup on wrapper exit rather than a best-effort kill loop. 78 tests across PowerShell and bash, CI matrix on all three platforms.

Implementation  --  platform guarantees and how each is enforced
Platform Mechanism Guarantee
Windows Win32 Job Object with JOB_OBJECT_LIMIT_KILL_ON_JOB_CLOSE STRONG -- 3-9 ms reap latency
Linux 5.14+ systemd-run --user --scope with cgroup.kill STRONG
Linux fallback setpgid + bash trap no-systemd hosts and WSL1
macOS setpgid + disowned out-of-process watchdog MEDIUM -- no Job Object, no cgroup.kill

The macOS ceiling is documented rather than papered over, and pinned by a negative test that proves the failure mode instead of hiding it.

Three shapes: diagnose orphans, reap with a config-driven predicate, or wrap Claude Code in a kernel-enforced job.

PowerShell bash Win32 cgroups systemd

Local-first PDF-to-notes app where every note is pinned to the sentence it came from. Click a note card and the PDF scrolls to the matched passage and flashes it. No API key, nothing leaves the machine.

Implementation  --  how anchors resolve, and why they survive a resize

Reads a PDF section by section and streams structured notes over SSE from a local Ollama model.

Stage Behaviour
Anchor resolution Exact text match, then fuzzy when the wording drifts, then page-only
Honesty The anchor chip tells you which of the three actually resolved
Coordinates Normalized to the page, so anchors survive zoom and resize
Generation Local Ollama (qwen2.5:7b) over SSE, detail dial from Concise to Thorough
Testing Hermetic Playwright e2e that boots its own MockDriver backend on scratch ports

Built for paper: notes export to wide-margin or Cornell print layouts for copying out longhand.

FastAPI SQLModel PyMuPDF React TypeScript pdf.js Ollama

Courtside  --  NBA player-prop forecasting engine

In paper trading and approaching go-live. Public methodology and validated walk-forward results live in courtside-showcase.

Note

Engine source is private. The showcase repo carries the methodology and the validated results.

flowchart LR
  A["9.1M odds snapshots<br/>877K closing lines<br/>3 full seasons"] --> B["Projection<br/>models"]
  B --> C["Multi-book<br/>line sweep"]
  C --> D["Calibration<br/>temperature + isotonic"]
  D --> E{"8-layer<br/>signal gate"}
  E -->|"veto"| F["Discarded"]
  E -->|"pass"| G["Paper trade<br/>CLV tracked"]
Loading
Implementation  --  calibration, the eight vetoes, and the Rust hot path

Calibration is temperature scaling followed by isotonic regression, fit per stat and per side, under walk-forward isolation so no future information reaches a fitted bin.

The signal gate is eight independent vetoes, any one of which discards the play: edge floor, CLV gate, stat whitelist, bin blocking, confidence floor, sample gate, hit-rate check, and a real-line requirement.

FastRust is a companion Rust compute engine over PyO3 that takes the hot-path EV math with GIL-releasing batch parallelism. It is a drop-in replacement for the Python compute_ev(), so the pure-Python path stays runnable as a correctness oracle.

Component Detail
Data 877K closing lines, 9.1M NBA snapshots, 3 full seasons
Calibration Temperature scaling + isotonic regression, per stat and per side
Rust layer PyO3 0.22, rayon batch API
Validation Walk-forward backtesting, CLV-tracked paper trading

Python Rust PyO3 XGBoost isotonic regression walk-forward backtesting

Tile-based RPG where every NPC is a live AI agent. Rendering engine written from scratch, no Phaser and no Pixi. World state is shaped by inter-agent negotiation rather than scripted dialogue trees.

Implementation  --  the renderer, and how NPCs consult each other mid-stream
Layer Detail
Rendering From-scratch canvas engine, A* pathfinding, sprite atlas, map transitions
Animation 4-directional sprite animation
Delegation NPCs consult each other mid-stream via ask_agent() tool calls
Providers 10 NPCs, each routed to Anthropic, xAI, Ollama, or a local subprocess
Transport Ed25519-authed WebSocket gateway

Because delegation happens mid-conversation rather than as a preprocessing step, an NPC can change its answer partway through based on what another agent tells it.

TypeScript Canvas WebSocket Ed25519


Hackathons

2nd place  --  Intuit HQ, NY Tech Week 2026

Explainable-ML underwriting challenge. We turned calibrated PD models (validation AUROC 0.740) into expected-NPV approval decisions for 13,306 applicants, forecast how the funded book defaults over 13 weeks, and answered 900 causal what-if queries with per-feature guardrails. The dataset was booby-trapped with selection bias and label leakage on purpose, and finding those traps was most of the scoring. I owned the shared feature pipeline and the approval-policy deliverable.

scikit-learn probability calibration causal inference survival analysis

Best Use of ElevenLabs  --  HackUSF 2026

Multi-agent disaster response dashboard. We routed live NOAA and FEMA feeds through Google ADK agents over the A2A protocol, with ElevenLabs voice alerts surfacing material weather events in real time. I wrote the AgentPanel component that visualizes the routing pipeline with animated data packets and elapsed timers.

Google ADK A2A protocol Gemini 2.5 Flash ElevenLabs Next.js FastAPI Leaflet


Open source

CLI and local web UI that finds and removes your least-listened Spotify tracks. Scoring reads your GDPR data export rather than the Web API, because the API does not expose real per-track play counts. Dry run is the default, and applying a cut requires typing DELETE.

Python spotipy FastAPI React  ·  MIT

Capture-invisible AI meeting overlay for Windows. Live transcription through faster-whisper, answers from the local Claude CLI, and the window is excluded from screen capture, so it does not appear in a shared screen or a recording.

Python PySide6 faster-whisper Win32  ·  Apache-2.0

Desktop agent marketplace where humans and AI agents buy, sell, and bid in one live shared room. Agents pay for their own tool calls over a real x402 USDC micropayment rail.

Tauri 2 React 19 react-three-fiber Rust x402  ·  MIT


Building in private

InternPilot  --  automated job application pipeline

Scrapes 13 job sources, scores postings against a resume profile, auto-fills ATS forms via Playwright across Greenhouse, Workday, Lever, Ashby, iCIMS, and SmartRecruiters, and drafts cover letters through a local LLM. Currently tracking 127 target firms.

Python Playwright Ollama FastAPI APScheduler

nemotron-reasoning-challenge  --  autonomous fine-tuning pipeline

Daemon that loops through 10 stages: Claude-powered math CoT generation, QLoRA SFT via Axolotl, GRPO reinforcement learning, vLLM eval, failure diagnosis, and Kaggle submission. Deadline-aware strategy that shifted from exploration to exploitation as the June 2026 deadline approached.

PyTorch Axolotl trl GRPOTrainer vLLM Claude API


Stack

Layer Tools
Languages Python, Rust, TypeScript, R, SQL, Bash, LaTeX
ML / quant XGBoost, LightGBM, scikit-learn, NumPy, SciPy, pandas, isotonic and temperature calibration
Web React, Next.js, FastAPI, Flask, Vite, Alpine.js
Infra / AI PyO3, PostgreSQL, SQLite, Playwright, Ollama, Claude API, Google ADK, Railway

Popular repositories Loading

  1. RedLine RedLine Public

    Local SEC filing change detection tool: polls EDGAR, diffs 10-K/10-Q sections, detects red flags, LLM analysis via Ollama

    Python 1

  2. ron2k1 ron2k1 Public

    Profile README

    1

  3. intuit-techweek-smb-underwriting intuit-techweek-smb-underwriting Public

    2nd place at Intuit's NY Tech Week explainable-ML hackathon. NPV-based funding decisions, survival default trajectories and guarded counterfactuals on a selection-biased loan book.

    Python 1

  4. ClawWorld ClawWorld Public

    Tile-based RPG where every NPC is a live AI agent, built on React + FastAPI with multi-provider LLM routing

    Python

  5. courtside-showcase courtside-showcase Public

    Methodology and validated walk-forward results for Courtside, my NBA player prop forecasting engine. Source private.

  6. claude-code-structured-concurrency claude-code-structured-concurrency Public

    Structured concurrency for Claude Code on Windows. Skill that acts as a wrapper for CC sessions, so no orphan functions chew through memory.

    PowerShell