CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

from vibe coding to agentic engineering - practice makes claude perfect

gRPC to JSON proxy generator following the gRPC HTTP spec

Resources about public speaking

Apache Hadoop

Learn how to design systems at scale and prepare for system design interviews

Starting code for the GildedRose Refactoring Kata in many programming languages.

Free and Open Source, Distributed, RESTful Search Engine

A collection of debugging stories. PRs welcome (sorry for the backlog) :-)

Master programming by recreating your favorite technologies from scratch.

🪓 Run Background Tasks at Scale

Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

High-velocity, monorepo-scale workflow for Git

a self-publishing protocol for musicians - on solana

General-purpose PKI on Ethereum

A collection of (mostly) technical things every software developer should know about

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Front End interview preparation materials for busy engineers (updated for 2026)

Unified developer tools for JavaScript, TypeScript, and the web

A list of Developer Community Writer Programs

Material for my React Fundamentals Workshop

💼 A curated list of talks and articles about real world frontend development

Modern framework for fast, powerful React apps

Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉

Incremental, cacheable builds for large Javascript monorepos using Bazel

A curated list of engineering blogs

The Rust Programming Language

Modern JavaScript Tutorial