Programming Tutorials

NOTE: This post is a more concise version of the much longer version on my blog Jekyll, the static site generator, although it is the older technol

Previously, I wrote about Fiber in Ruby, one of the mechanisms used to build asynchronous programming in Ruby. In this post, I want to compare Ruby Fi

Note: Rails Baseline is the production-ready Rails foundation I tested here. It gives a new SaaS application and the coding agents working in it clea

I wanted to be able to tell Hermes, "Send this email tomorrow at 9 a.m." So I built hermes-sendgrid, an open-source plugin that connects Hermes Agent

A table with 200 rows and 5 action icons per row. That’s 1,000 inline SVGs dropped into your HTML. When does that start to impact your performance? B

Release video for Glimmer DSL for Web (Award-Winning Frontend Framework for Ruby on Rails) 0.10.0 & 0.10.1: Auto-Conversion of Date/Time Element Value

In release 4.0, the Ruby Powers-That-Be have brought class Pathname into the Ruby core. This is a Very Good Thing. Through its many instance methods,

When an agent writes the code, you stop reading every line. You can pretend otherwise for a while, but on any real codebase you end up skimming a 600

Ever wondered how to build those interactive product tours that spotlight elements and walk users through your app? Ever wondered how you could with j

Learn how Ruby's Hash#fetch with a block gives lazy, falsy‑safe configuration defaults — cleaner than || or fetch(key, default). Read More

Learn how to use Ruby's Enumerable#lazy for memory‑efficient streaming of large datasets with real‑world code examples. Read More

I've been building RepBoard, a Rails app that gives freelancers a portable reputation profile — collect reviews from clients, share one professional l

Let's say we have an app which receives webhooks from a payment provider. A customer starts a payment, so we receive a payment.processing event. A mo

Last week a build broke and fixed itself. No one watched a console, no one triaged. The failure filed its own ticket and an agent shipped the PR. The

While researching the BigBlueButton bug bounty program on YesWeHack, I found an access control issue in Scalelite’s recording playback flow. The prob

A Go string is essentially a sequence of bytes. That sounds like a small implementation detail, but once you start dealing with UTF-8 and Unicode, it

Fixing "g++ Not Found" When Debugging Rails in RubyMine on Fedora TL;DR: If clicking "Debug" in RubyMine on Fedora fails to install debase

When a build breaks, the bug fixes itself We stopped babysitting CI failures. Now a red build files its own bug — and an AI agent picks it up and shi

Hey DEV community! 👋 I've been working on a Blog Application built with Ruby on Rails to practice backend architecture, clean code standards, and Rai

Originally published on my website. The Problem I've been writing Ruby on Rails for a while now, and in all that time migrations have neve