How to Deploy Your Aider-Built App

Aider typically generates projects using Works with any existing codebase. Most commonly used with Python (Django, FastAPI, Flask) and JavaScript/TypeScript (React, Next.js, Node.js) projects. Understanding the stack is important because it determines your deployment options and the specific configuration you'll need.

Aider doesn't change your deployment target — it modifies code within your existing project. Deploy according to your framework's normal process

Review all changes Aider made across files — Aider works file-by-file and may have missed cross-file dependencies. Run your test suite to catch regressions. Verify that function signature changes in one file match call sites in other files. Build and deploy through your normal pipeline

One of the most common deployment failures is missing or misconfigured environment variables. Aider 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.

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.

The most frequent issues we see in Aider 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.