Knowing which projects/languages/frameworks to invest time into and which to skip (even if they produce useful subprojects) is a superpower these days.
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A lot of normal users don’t feel these pain points or tolerate them by sidestepping the whole affair with containers or VM images. But if you’re in a position where these things have an impact it can be extremely motivating to seek out others who are willing to experiment with different ways of doing things.
For a less controversial take, consider alpine's apk package manager. For a single-use container that runs one utility in an early dockerfile stage, apk can probably produce that image in 2-3 seconds, whereas for an apt-based container it's more like 30 seconds. That may not matter in the grand scheme of things or with layer caching or whatever, but sometimes it really does.