The docs are not clear on parallelism, CPU cores, or anything like that. To find out how many CPUs I had access to, I had to add an endpoint in my app which returned the result of os.cpus()!
Plus, the 'getting started' guide runs a bare server.js with no parallelism https://doc.scalingo.com/languages/nodejs/tutorial#define-how-to-start-your-application
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