grep | structural search/rewrite tool for many languages

ast-grep is a fast and polyglot tool for code structural search, lint, rewriting at large scale.

codename goose | codename goose

Your open source AI agent, automating engineering tasks seamlessly.

Software Engineering for Data Scientists, Part 1: Pydantic Is All You Need for Poor Performance Spaghetti Code

Learn why using Pydantic beyond API boundaries leads to 6.5x slower performance and 2.5x more memory usage. This post reveals the serialization/deseri...

DBCrust

High-performance database CLI engineered for Django developers — Advanced ORM analysis, performance optimization, SSH tunneling, and seamless multi-da...

How to Secure Environment Variables for LLMs, MCPs, and AI Tools Using 1Password or Doppler

Stop hardcoding API keys in MCP configs and AI tool settings. Learn how to use 1Password CLI or Doppler to inject secrets just-in-time for Claude, Cur...

How to Have LLMs Write More Efficient Code using Optimal Data Structures

LLMs often generate O(n²) solutions when O(n) would suffice. Learn how to prompt for optimal data structures, avoid common performance pitfalls, and g...

Claude Code Output Styles: Explanatory, Learning, and Custom Options

An implementation guide to Claude Code's /output-style, the built‑in Explanatory and Learning modes (with to-do prompts), and creating reusable custom...

How I Host My Apps: How to Deploy in 2025

The hosting setup I use for aVenture.vc, plus why you shouldn't waste time with complex cloud services when starting out.

williamcallahan.com

Interactive personal site with beautiful terminal/code components & other dynamic content

Book Finder (findmybook.net)

Java-based book search and recommendation engine with OpenAI integration

repo-tokens-calculator

CLI token counter (Python + tiktoken + uv) with pretty summary

AngelList

Platform connecting startups with investors, talent, and resources for fundraising and growth.