Can I export my data?
Abstract:Package managers are legion. Every programming language and operating system has its own solution, each with subtly different semantics for dependency resolution. This fragmentation prevents multilingual projects from expressing precise dependencies across language ecosystems; it leaves external system and hardware dependencies implicit and unversioned; it obscures security vulnerabilities that lie in the full dependency graph. We present the \textit{Package Calculus}, a formalism for dependency resolution that unifies the core semantics of diverse package managers. Through a series of formal reductions, we show how this core is expressive enough to model the diversity that real-world package managers employ in their dependency expression languages. By using the Package Calculus as the intermediate representation of dependencies, we enable translation between distinct package managers and resolution across ecosystems.
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初中时，因为家里缴不起34块5的学费，郭晓东辍学到潍坊打零工；1993年，他离开大坊前村，怀揣着演员梦，开始北漂；三年后他考上北京电影学院，毕业后进入八一电影制片厂，成为一名演员。
TL;DR: Lego is running Star Wars make and take events on March 8. A limited quantity of Lego Star Wars Lightsabers will be available for free at participating stores.