Tbh I had no idea this was even a thing until recently. I've been working with Rails for a while now and somehow never came across it. So let me explain it the way I understood it. You know how we normally do associations in Rails, User has many Posts, Post belongs to User. Two different models, two different tables. Simple. But what if a model needs to reference itself? Like same table, same mode
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Why I built another Ruby test runner inspired by Playwright Test Ruby already has great testing tools. If you are building Rails applications today, you probably use one of these combinations: RSpec + Capybara Minitest + Capybara Rails system tests Maybe Selenium, Cuprite, Ferrum, or Playwright through Ruby bindings These tools are mature, battle-tested, and widely used. So the natural question
Best Crypto Trading Bot API in 2026: Binance, CoinGecko, CoinGlass, and Regime Compared Building a crypto trading bot in 2026 means choosing from dozens of APIs. Some give you raw market data. Some give you derivatives analytics. Very few tell you whether you should actually be trading right now. This guide compares the four APIs that matter most for bot builders: Binance, CoinGecko, CoinGlass,