Diagram of a quantizer converting weights

Mini Post-Training Quantizer: FP32 to INT4 with Calibration and Dithering in Pure Python

This post walks through building a lightweight post-training quantizer that maps FP32 LLM weights to INT4 using calibration and dithering, with full Python code and testing steps.

October 7, 2026 · 7 min · 1393 words · martinuke0
HNSW graph structure with layered connections and search paths

Build a Pure-Python HNSW Graph: A Hands-On Portfolio CV Project

A step-by-step guide to implementing a pure-Python HNSW graph, with runnable code, testing, and extension paths that demonstrate real systems engineering depth for your CV.

October 7, 2026 · 11 min · 2218 words · martinuke0
User safety service architecture diagram

Building a User Safety Service: A Portfolio Project for Systems Engineers

A step‑by‑step guide to building a user safety microservice that demonstrates rate limiting, content filtering, and audit logging for hiring managers.

October 6, 2026 · 6 min · 1167 words · martinuke0
A sleek notebook with code snippets and a transformer diagram.

Hands-On Build Guide: Minimal LoRA Fine‑Tuning Engine for a 2‑Layer Transformer

A practical, end‑to‑end guide to building a minimal LoRA fine‑tuning engine for a 2‑layer transformer, with runnable code and production‑ready extensions.

October 4, 2026 · 7 min · 1327 words · martinuke0
Illustration of a neural network with checkpoint arrows

Hands‑On Activation Checkpointing for GPT Training From Scratch

Implement activation checkpointing for GPT training from scratch, with runnable Python code and production‑grade insights.

October 4, 2026 · 5 min · 1062 words · martinuke0
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