Deployment
Production is more than uploading files
A reliable launch needs server setup, process management, reverse proxy configuration, logs and a simple recovery path.
A launch is an operating system
Production includes the application process, HTTPS, persistent data, logs, health checks and backups. Uploading files covers only one piece of that system.
Document the deploy and recovery path before launch. A small, repeatable procedure is more valuable than a complicated setup nobody can restore.