Programming Tutorials

My Journey With Rust — #1 End Before the Start If you're reading this, you're probably one of two people: a newbie wondering if

How do you avoid the risk of running a Python application locally that could be malicious, break your code, or leak private data? How can you create a

Check your understanding of Python interfaces, from informal interfaces and duck typing to formal interfaces built with the abc module.

What Active Rubyists Are Using in 2026: A Maintainer's Read of the RubyKaigi Survey

I went looking for a Ruby port of Anthropic's Claude Agent SDK this week, the thing that ships as pip install claude-agent-sdk for Python and npm inst

I've been writing a lot of code recently, of course with lot of help from Claude and Codex. I mostly write in Ruby on Rails and I am falling in love w

In this tutorial, I'll show you how to build a private local RAG-powered Q&A AI agent for your personal documents using LangChain v1, Ollama, Qwen, an

AI coding assistants have evolved from simple autocomplete tools into capable development agents that can write code, debug applications, refactor pro

Your AI product experiment reaches statistical significance on day 14 of a planned 30-day run, measuring a causal inference question: did the LLM-base

Don't take my word for any of it. Run this on a repo you know cold and read the diff yourself. Four commands, about five minutes, and you'll know exac

A Rack application is typically configured through a config.ru (RackUp) file. This file defines the stack of middleware that will handle incoming requ

Why I'm Forced to Say Farewell: Google Management Has Lost Its Moral Compass TL;DR — A senior Google engineer’s public resignation letter

Discord Bot in 50 Lines of Python I'll show you how to build a working Discord bot that responds to commands in less than 5 minutes. What

Honestly, this started out of frustration. I was applying for jobs a few months back and kept doing this thing where I'd open a job description, read

Most of the code we write can be checked against something. A tax calculator has the tax code. A JSON parser has a spec. A physics sim has reality. Yo

Hi everyone, today I'm excited to officially launch Noter, a new way to stay actively in the loop while your coding agents are working. 🤓 Noter start

If you like fast social deduction games, I’ve been building Imposter Game, a browser-based party game designed for phones, classrooms, team play, and

Lifecycle: library adoption (2010–2020), platform parity (2021–2024), and dependency deletion (2025–2026). Three columns: what we used to install, w

Food production facilities require stable air hygiene, especially in packaging areas where products are exposed before final sealing. In such zones, a

The cryptocurrency market moves at a breakneck pace, and waiting days for traditional bank funding means missing out on profitable market swings. When