Nix
Nix is a tool that takes a unique approach to package management and system configuration. Learn how to make reproducible, declarative, and reliable systems. Nix builds packages in isolation from each other. This ensures that they are reproducible and don't have undeclared dependencies, so if a package works on one machine, it will also work on another. Nix makes it trivial to share development and build environments for your projects, regardless of what programming languages and tools you’re using. Nix ensures that installing or upgrading one package cannot break other packages. It allows you to roll back to previous versions and ensures that no package is in an inconsistent state during an upgrade. Nix is a purely functional package manager. This means that it treats packages like values in purely functional programming languages such as Haskell, they are built by functions that don’t have side effects, and they never change after they have been built.
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npm
We're npm, Inc., the company behind Node package manager, the npm Registry, and npm CLI. We offer those to the community for free, but our day job is building and selling useful tools for developers like you. Get started today for free, or step up to npm Pro to enjoy a premium JavaScript development experience, with features like private packages. Bring the best of open source to you, your team, and your company. Relied upon by more than 11 million developers worldwide, npm is committed to making JavaScript development elegant, productive, and safe. The free npm Registry has become the center of JavaScript code sharing, and with more than one million packages, the largest software registry in the world. Our other tools and services take the Registry, and the work you do around it, to the next level. At npm, Inc., we're proud to dedicate teams of full-time employees to operating the npm Registry, enhancing the CLI, improving JavaScript security, and other projects.
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tea
Introducing tea - the revolutionary, cross-platform package manager. Say goodbye to slow & clunky, and say hello to fast & smooth. From the creator of Brew. With tea, simply type commands and it takes care of the rest. Get the latest versions of open source tools and support specific tool versions for different projects. Experience better package management with tea. And through that packaging infrastructure, we have plans of leveraging blockchain to help remunerate devs for their contributions to OSS. You can learn more about our grand ambitions for web3 by checking out our white paper here. Easily access the entire open source ecosystem with tea. Simply prefix your commands with "tea" and if the tool isn't installed, tea will install it for you. Add magic to your shell scripts and use developer environments to enhance your workflow. magic is optional; if you don’t enable it, then just prefix your commands with `tea`.
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NuGet
NuGet is the package manager for .NET. The NuGet client tools provide the ability to produce and consume packages. The NuGet Gallery is the central package repository used by all package authors and consumers. New to NuGet? Start with a walkthrough showing how NuGet powers your .NET development. Browse the thousands of packages that developers like you have created and shared with the .NET community. Want to make your first NuGet package and share it with the community? Start with our walkthrough! The command-line tool, nuget.exe, builds and runs under Mono 3.2+ and can create packages in Mono. Although nuget.exe works fully on Windows, there are known issues with Linux and OS X. The primary source for learning about a package is its listing page on NuGet (or another private feed). Each package page on NuGet includes a description of the package, its version history, and usage statistics.
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