How to Build a Reliable AI Assistant with the Claude API

A freeCodeCamp tutorial building ShopHelper with the Claude API: conversation history, tools, multi-block responses, workflow patterns, and evaluating whether prompt changes actually help.

Tutorial · AI · Tutorials · LLMs · Programming

Build an LLM Tokenizer and Attention from Scratch in TypeScript

SitePoint tutorial that implements BPE tokenization, cosine similarity vector search, and scaled dot-product attention in TypeScript—exposing LLM primitives as ordinary readable code.

Tutorial · LLMs · Tutorials · Programming · Machine Learning

Replacing the old battery on rechargeable bike lights

Julia Evans walks through repairing decade-old rechargeable bike lights by replacing the battery at a makerspace—opening the case, identifying the cell, soldering a replacement, and what she learned as a non-electronics expert.

Tutorial · Hardware · Tutorials · Engineering · Education

Teaching GPU programming in p5.js: now with compute shaders

Dave Pagurek brings GPU compute shaders into p5.js for teaching—why graphics education needs modern GPU abstractions, and how students can write compute shaders in a friendly creative-coding environment.

Tutorial · Graphics · Programming · Education · Open Source

Modern Object Pascal Introduction for Programmers

A practical introduction to Modern Object Pascal for programmers coming from other languages: units, classes, generics, memory management, exceptions, and more—maintained by Michalis Kamburelis and the Castle Game Engine project.

Tutorial · Programming · Tutorials · Education

Teaching a World Model to Play Pokémon

Training a JEPA-style LeWorldModel on Pokémon Red screenshots and button presses, then using CEM latent planning to select a starter—why latent collapse, SIGReg, and rollout fine-tuning mattered, and 52/100 plans succeeding after tuning.

Tutorial · AI · Machine Learning · Research · Programming

Creating and Using Code Snippets in Xcode

A practical tutorial on Xcode code snippets—creating reusable Swift/SwiftUI templates with placeholders, completion shortcuts, and tips for organizing snippets you type repeatedly.

Tutorial · Programming · Education · Productivity

Transformer Explainer: LLM Transformer Model Visually Explained

Georgia Tech’s Polo Club walks through GPT-2’s Transformer stack—embeddings, multi-head attention, MLP, sampling—with an interactive in-browser model for learning how next-token prediction works.

Tutorial · AI · LLMs · Machine Learning · Education

The trouble with 'ntile()'

Danielle Navarro warns against dplyr::ntile() in regulatory analyses: the SQL-inspired ranking helper often fails to produce equal-sized groups or the quantile splits analysts think they are getting.

Tutorial · Programming · Mathematics · Education

aie_2.1: building it — a conversation engine where the LLM 'remembers'

Meraki builds a Python conversation engine that shows how LLMs fake memory: every turn resends the full history so the model appears to remember, with practical notes on context and design.

Tutorial · AI · LLMs · Programming · Education

How LLMs Actually Work: A Practical Guide for Product Managers

Abhishek Jaiswal explains tokens, transformers, attention, RAG, inference, and agents in practical PM language—so product leaders can make better build-vs-buy and quality decisions without becoming ML researchers.

Tutorial · LLMs · AI · Product Management · Education

English: a vs anWhy vowel letters are the wrong rule for indefinite articles in generated text

Amit Patel (Red Blob Games) digs into when English wants “a” versus “an”: the rule tracks spoken vowel sounds, not written vowel letters, and only a small set of common words need exceptions for procedural text generation.

Tutorial · Programming · Writing · Algorithms · Education

How Your Code Runs: The Journey of a Program Through the CPU

A clear walkthrough of CPU architecture—control unit, ALU, registers, and memory—and how a simple program is compiled, loaded, and executed instruction by instruction.

Tutorial · Programming · Engineering · Education · Hardware

Why Backprop Goes Backward

Gregory Gundersen reconstructs backpropagation from first principles, explaining why the algorithm needs a backward pass to compute neural network gradients efficiently.

Tutorial · Machine Learning · Mathematics · Programming · Education