Closing remarks

Do not take away from this book that all of these features are required in order to have a successful service. Most servers will either have too little traffic for it to matter or will be important enough to pay an engineer to manually tune them until they run well enough. Servers far larger than yours have run with hardcoded concurrency limits. That's not to say we can't do better, and if you do find this helpful, please star the project on GitHub.