Should I bind my Heroku app to process.env.PORT or a fixed port for local development?
When developing a Heroku‑deployed application, I want the server to start successfully both on my local machine and when pushed to Heroku’s dynos. The platform assigns a dynamic TCP port through the $PORT environment variable, while local runs often lack this variable, leading developers to either hardcode a port (e.g., 3000) or add a fallback. What is the r
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