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jxtngx/README.md

About

Hi! I'm Justin, and I'm focused on artificial intelligence solutions and developer education.

→ My core language is Python, and my secondary language is TypeScript
→ My core focus is deep learning for post-training
→ My secondary focus is building Next.js applications
→ My portfolio work lives in @theosis-ai
→ Major open source projects I've contributed to are pinned here

Education and Background

→ MS in AI from Drexel University
→ prior Developer Advocate @ Lightning AI

Note

past work for Lightning AI can be viewed on my Lightning profile page

Open Guides

  1. Intro to Transformers (PyTorch)
  2. Intro to Post-training (PyTorch's torchtune)
  3. Intro to AI Engineering (Llama Stack | PydanticAI)
  4. Applied AI Engineering (Llama Stack | PydanticAI)
  5. Applied Fullstack AI (TypeScript, Next.js)
  6. Intro to Next.js for Python Engineers (TypeScript, Next.js)

Note

all guides are in active development as of 03/2025

Pinned Loading

  1. pytorch/torchtune pytorch/torchtune Public

    PyTorch native post-training library

    Python 5k 559

  2. Lightning-AI/pytorch-lightning Lightning-AI/pytorch-lightning Public

    Pretrain, finetune ANY AI model of ANY size on multiple GPUs, TPUs with zero code changes.

    Python 29.1k 3.5k

  3. Lightning-AI/litgpt Lightning-AI/litgpt Public

    20+ high-performance LLMs with recipes to pretrain, finetune and deploy at scale.

    Python 11.8k 1.2k

  4. Lightning-AI/torchmetrics Lightning-AI/torchmetrics Public

    Machine learning metrics for distributed, scalable PyTorch applications.

    Python 2.2k 424

  5. Lightning-Universe/lightning-flash Lightning-Universe/lightning-flash Public archive

    Your PyTorch AI Factory - Flash enables you to easily configure and run complex AI recipes for over 15 tasks across 7 data domains

    Python 1.7k 211