Programming Tutorials

Most cloud platforms are not platforms. They are holding companies. A database startup gets acquired. A serverless product gets bolted on. An AI infe

Originally published at olund.dev. Watch a coding agent land in an unfamiliar repository and you will see it do what a new hire does on day one: grep

Originally published at olund.dev. I run my coding agents on top of a personal memory system I built: durable facts live in a markdown file, an index

Production agents in 2026 are still held together with Python glue: prompt chains parsed by hand, tool calls wrapped in try/except, no replay, no cost

If you're building anything RAG-shaped — a chatbot with long-term memory, semantic search over docs, "find similar" for products or support tickets —

Setting up a fresh developer machine is death by a thousand commands. You hunt down install instructions, juggle apt, dnf, pacman, brew, and curl | ba

This is a pre-deploy checklist I now run top to bottom before any Anchor program of mine touches mainnet. Every item below is a bug I reproduced mysel

Rust for Python Developers: Why You Should Learn It tags: rust, python, programming, career You’ve spent years mastering Python’s elega

Building robust and efficient backend systems has become the cornerstone of modern web development. As Web Developer Travis McCracken, I’ve spent coun

A production error is exactly when an AI agent should be least creative. That sentence became the design rule behind Missio, a terminal mission contr

"The fastest way to find the holes in your understanding is to try to teach someone else." Today's milestone (Day 62 of #100DaysOfSolana) is about

probatum is a test-oriented check runner I build (in Rust) — one config file, embedded checks (curl, grep and process supervision built in), and only

I build Elpis — a terminal environment for coding agents forked from OpenAI's Codex CLI. One problem I keep running into with long agent sessions: th

Ideas are not the scarce resource for me. Returning to an idea without losing its emotional logic, technical decisions, names, dates, and unfinished

A few weeks ago I started working on XVM - a custom virtual machine built entirely from scratch in Rust. Not an emulator of any real processor (not x8

Persistent memory changes the kind of problem you own Adding a conversation summary to the next prompt is a useful prototype technique. Per

Here is a task that comes up constantly. You are doing inference in Rust — candle, burn, ort — and you want to feed a video to a model. Step one is al

Lessons from wrapping grok-build — the architecture, the traps, and why we picked Tauri over Electron. TL;DR grok-build is xAI's open-s

Full title: [Advanced Rust] 1.10. References and Interior Mutability (Quick Recap) - References, Interior Mutability, Cell Type, and Related Operation

1.9.1. The Core Idea of Ownership The core idea of Rust’s memory model is that every value has exactly one owner. In other words, only one