If the language/framework you are using handles it already, you're probably golden: Your language/framework is functionally the one dependency you always have,

If the language/framework you are using handles it already, you're probably golden: Your language/framework is functionally the one dependency you always have, and features implemented in the platform tend to be fairly stable. Pick a platform that supports the most difficult things core to your application. I'm most comfortable in .NET or PHP, both which have extremely large long-lived built-in function sets that generally are non-breaking over a span of many years. Meanwhile, I generally don't add anything to them via NuGet/Composer/etc. They both operate almost opposite to the JavaScript world, where everything is built by random third parties. If it's popular enough a need, it tends to be added the basic package.