Build Your Own Preview Deployments for GitHub Pull Requests (Without Vercel or Netlify)

Introduction Preview deployments are often touted as a major selling point of PaaS platforms like Vercel and Netlify — and for good reason. They automatically deploy every pull request to a unique, accessible URL before merging, enabling reviewers to test changes in a production-like environment without local setup. But here’s the thing: with modern AI tools like Claude Code and GitHub Actions,…