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Rail Companies Bringing AI and Green Tech to Railways

In 2025, the rail industry is buzzing with innovation, and it's the rails companies at the forefront who are making waves.

What Founder Mode Really Means

In a recent talk at a Y Combinator alumni event, Airbnb CEO Brian Chesky shared insights on the concept of "founder mode".

Hanami Framework for Rails Developers: Complete Guide

A comprehensive comparison of Hanami vs Rails for Ruby developers, covering architecture, migration strategies, and practical examples to help you choose the right framework.

Rails Performance Monitoring: Complete Guide 2025

Comprehensive guide to monitoring and optimizing Rails application performance using APM tools like New Relic, DataDog, AppSignal, Scout APM, and custom instrumentation.

Ruby Concurrency Patterns: Threads, Fibers and Ractors

A practical guide to Ruby concurrency: thread pools, fibers with the async gem, and Ractors, with runnable examples and notes on where each one fits.

How To Convert Customers With Cold Emails | Startup School

Learn how to write cold emails that convert leads into customers. Discover effective strategies, key principles, and real-life examples to enhance your cold outreach efforts.

Rails 8.0 Migration: A Phased Upgrade Plan for Large Apps

Ways to Make Money With Software and Side Projects

In 2025, making money with software is all about creativity and innovation.

Relaunching a Startup After You Find and Fix the Problem

Startup iteration strategies: Identify product problems, fix them, relaunch successfully. Learn resilience, pivot techniques, customer feedback loops for MVPs ✓

TDD Workflow Automation for Rails: Guard, Spring, Parallel Tests

Make the TDD loop fast in Rails: Guard re-runs the right Minitest files on save, Spring is optional preloading, parallelize runs tests across cores, and CI runs the full suite.