Bye-bye, API layer
In a classic setup (React + Node), you’re building two separate worlds. You have to define APIs, manage caching, and pray the frontend stays in sync with the backend. In a Modern Monolith, Inertia.js blurs that line. I use React for the UI, but routing and state live entirely on the backend. Data is passed from controllers to components as props. No duplication, no useless abstractions.
Perfect match for AI: Conventions over Configuration
In 2026, Claude is my primary co-founder. It’s crucial that my AI partner understands my intent without me writing walls of documentation. This is where Rails shines. Conventions Win: Rails has a "golden standard" for everything. AI knows exactly where the models live and how to name the routes. Fewer Bugs: Unlike fragmented JS frameworks, AI in Rails stays "on the rails," delivering clean, predictable code from the first prompt.
Speed to Market
When you’re solo, your only real resource is time. Removing the "plumbing" between the front and back lets me focus on what actually matters: business logic. What stack would you choose if you had to launch a product solo in just 2 weeks?