How to Deploy Your Jules-Built App
Step-by-step guide to deploying your Jules app to production. Covers Python deployment, environment variables, and production configuration.
What Jules generates
Jules typically generates projects using Python, TypeScript, Java, and Go — Jules works by cloning your GitHub repository, making code changes asynchronously, and opening a pull request. It works with any language your repository uses. Understanding the stack is important because it determines your deployment options and the specific configuration you'll need.
Where to deploy
Jules doesn't prescribe deployment targets — it integrates with your existing GitHub workflow and your existing CI/CD pipeline handles deployment when PRs are merged
Step-by-step deployment
Jules generates pull requests against your repository. Your existing deployment pipeline handles the rest when a Jules PR is merged. Ensure your CI pipeline includes all necessary checks (tests, linting, security scanning) so Jules PRs go through the same validation as hand-written code
Environment variables
One of the most common deployment failures is missing or misconfigured environment variables. Jules apps often hardcode values during development that need to be externalized for production. Audit every file for hardcoded URLs, API keys, and configuration values. Create a .env.example file listing every required variable. Set these in your hosting platform's dashboard before deploying.
Post-deployment checklist
After deploying, verify: HTTPS is enforced on all routes, custom domain is configured and resolving, environment variables are correctly loaded, all features work in production (not just locally), error tracking is capturing exceptions, and performance is acceptable under real conditions.
Common deployment mistakes
The most frequent issues we see in Jules deployments: forgetting to set environment variables (causing startup crashes), not testing the production build locally before deploying, missing build dependencies, and using development configurations in production.
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Related guides
Common Bugs in Jules-Generated Code
The most common bugs we find in Jules apps and how to fix them.
Security Issues in Jules Code
Critical security vulnerabilities commonly found in Jules-generated apps.
Optimizing Jules-Generated Code for Performance
How to make your Jules app faster.
Adding Tests to Your Jules Project
How to add a testing framework to your Jules app.
Related technologies
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