Singleton Design Pattern: Boosting Code Efficiency and Performance

Thanks for your insights as while Singletons can definitely be useful for centralizing access to a specific resource, it's important to consider potential downsides like tight coupling and testability issues. I learnt about singleton approach during my Full Stack Web Development course i.e. bostoninstituteofanalytics.org/full-stack-…, though have you explored alternative approaches like dependency injection for scenarios where performance isn't the primary concern?