Database Optimization for Rails: From Slow Queries to Lightning Fast
Your Rails app was fast at launch. Now it's slow. The database is almost always the culprit. Here's how to find slow queries, fix N+1 problems, add the right indexes, and kee...
Thoughts on software engineering, architecture, and technical leadership
Your Rails app was fast at launch. Now it's slow. The database is almost always the culprit. Here's how to find slow queries, fix N+1 problems, add the right indexes, and kee...
Background jobs run outside your normal tests. When they fail, your users don't see it. They just don't get their welcome email. Here's how to test every job your app queues....
Your users shouldn't wait for emails to send or images to process. Move slow work out of the request cycle. Rails 8's Solid Queue handles it with just your database. No Redis...
Broken emails lose users. Password reset links that go to localhost. Invoices with missing attachments. Welcome emails that never arrive. You don't need paid ser...
Your MVP works. Now you have 10,000 users and the app is falling over. Here's exactly what breaks at each stage and what to fix first. Indexes at 1,000. Cachin...
You don't need React for most Rails apps. Before you add a separate frontend, understand the real costs: two codebases, API contracts, authentication complexity, and slower o...
Focus on what matters. Skip nonessential features. Launch fast, learn from real customers, and iterate.
Rails 7 has quietly become the fastest way to launch an MVP. It eliminates complexity with **Import Maps** (no Node.js), **Hotwire** (reactive UI without...